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/100 by , posted on .

I am a 41-year-old runner, about 170 pounds and 6’ 1” tall. I race all distances, from 5ks to Marathons, and spend at least half of my year training for an upcoming marathon.

Preliminary Fit

The ParkClaw 275 GTX is created to be an all-weather, all-terrain running shoe.



Out of the box, the first thing I noticed about the shoe was its rigidity. The shoe is very stiff, a little heavier (275grams/9.63oz.), but fit true to expectations for my feet. The shoe’s stiffness was immediately noticeable upon first wear, and unfortunately, the arch support seemed to be a little misplaced, putting pressure on my arch rearward toward my heel.

Otherwise, the shoe fits well, providing stable comfort and plenty of space for my forefoot, as well as tremendous no-slip shoelaces.

General Function



Generally speaking, the ParkClaw 275 is a decent daily trainer. In recovery or easy paces, the shoe tends to present itself a little stiff and clunky.

With the 8mm heel-to-toe drop and heavier lugs on the bottoms, it is a little too easy to lose good foot-strike form. The shoe does provide an extremely stable platform, however.

I tested this shoe in the heart of winter, so the temps were often extremely low, as cold as 19°F (-7°C), but the ParkClaw 275 kept my feet cozy warm.

Consistent Performance



Whether I was doing a slow neighborhood recovery run at an 11:30 pace, or a workout near a 7:00 average pace, these shoes performed well.

After they broke in, it seemed the flexibility of the toe increased a bit, which was great.

Additionally, the shoes are just lightweight and nimble enough to handle tricky technical trails. Their grip and traction are superb, providing a stable footfall no matter the terrain.


Terrain Adaptability

In the mud and rain, or on frozen icy turf, this shoe conquered every element. Likewise, whether running on a concrete lane, an asphalt street, a grassy path, or a dirt trail, no terrain was off limits in the ParkClaw 275, whether uphill or downhill.

On a few occasions, I found myself off-road in cold, wet conditions, my feet remained completely dry and warm, thanks to the GORE Invisible Fit Technology. The shoe almost feels like a mini rugged boot, protecting me from rocks and sticks, and whatever else may seek to puncture my feet.

The outsole tread is aggressive and cushioned enough to handle unexpected stones and loose gravel so that no traction is lost. While running in these shoes, I did not lose my balance or fall one time, and I intentionally took them on extremely difficult trails.


Expected Durability

This shoe seems like it will last forever. After 90 miles on every kind of terrain, my ParkClaw 275s show very little wear and tear.

The longer I wear them, the more flexible they become, which is an advantage. I estimate these shoes could last 1,000 miles.



  • Agile strength
  • An impeccable grip on slippery surfaces
  • No-slip shoelaces
  • Waterproof


  • A little bulky
  • Not flexible enough
  • Arch support seems misaligned

Final Thoughts

For a daily trainer in diverse environments that could withstand hundreds of miles, the ParkClaw 275 GTX is an outstanding choice. It is a little clunky and inflexible for speed, but this shoe is great for pounding through every kind of terrain and element.

When I run in these shoes, I feel like there is no place I cannot go, so I do not have to worry about terrain or weather changes.


Check out my video review here.

| Level 4 expert Verified
My name is Mark Clements. I’m an avid runner in my 40’s and I run races from 5Ks to Marathons. I’m always training for a race and run at least 40 miles/week, rotating up to 5 pairs of shoes through my runs. My long term goal is to run into old age, remaining injury-free, which comes in part by being equipped with the best shoes out there!

/100 by , posted on .

I've had a long-standing fascination with Inov-8 as a brand and company. Well, "long-standing" is relative given the company's short history of less than 15 years. I first purchased an Inov-8 product – a 12-liter back-pack – in 2010 when I was contemplating run-commuting.

The back-pack was well designed, keenly priced, and remains a favorite kit item to this day. It was then a couple of years after that I first came across their running shoes and then another couple of years after that that I mustered up the courage to try them.

You see, their shoes looked so damn intimidating, with their aggressive grip, slim and low profile, and overall "ready for business" look about them, not to mention their focus on off-road running (at a time when I was happy to just run around neighborhood blocks).

Even the model names were intimidating – Mudclaw, X-Talon, Terraclaw – all followed by a 3-digit suffix, like a secret code of sorts.

As I later learned, the numbers simply denominated the weight of the shoe (in grams) and I wasn't wrong to feel intimidated, since the bulk of their range had minimal cushioning and low drops of 3-6mm, thereby catering to the more experienced, efficient and nimble-footed runners.

All suited, of course, for rugged, technical and inhospitable terrain that these shoes were designed for.

You see, the British-founded company is based in Cumbria, near the Lake District with its glacier-carved hills and valleys that is also the home of British fell-running (extreme hill running, often in mist, horizontal rain, and freezing temperatures).


Serious opening message inside the box


Although now owned by Japan's Descente since 2015, little seems changed. The shoes still have names like Mudclaw, Trailtalon and X-claw and still feature 3-digit suffixes.

The only discernible change is that the shoes now seem to cater to dry and rocky trails (read: America) more so than the traditional soft terrain in Britain, evidence of the company's more global outlook.

Paving new paths

The Parkclaw 275 GTX (which denominates the Gore-tex version) may also be a result of this new approach to open up a new audience, in this case, the part-time, casual, novice, or urban trail runner looking to mix-up tarmac and gentle trails.

When offered the chance to choose an Inov-8 shoe to test, I went for the Parkclaw (GTX) because I saw its potential to fulfill a few of my needs:

I was looking for a shoe for running predominantly in the British winter, which is cold and often wet, and suited for my typical long-slow distance route, which is a 50-50 mix of road and groomed trail, frequently along the Thames River.

An ideal shoe would provide some protection against the elements, with enough cushioning for the road sections, and sufficient grip and traction for both wet tarmac and muddy (but not sloppy) trails.

On paper, Parkclaw 275 GTX fulfilled my needs perfectly.


Robust, roomy, and Gore-tex


Go up half size and watch the heel.

In the intervening days before taking delivery of the shoes, however, I wondered if I chose wisely. 

According to Inov-8's fit scale which runs from 1 to 5, the forefoot volume of the Parkclaw is classified 5, which is equivalent to a 2E fitting. Being a D (standard, or 3 on the Inov-8 scale), I worried that 5 may be too wide. I also worried that I may have ordered the wrong size.

I'm normally US 10.5 (which usually translate to UK 10.0 and EUR 44.5) but under Inov-8 sizing UK 10/EUR 44.5 is US11.0, so I went with that, wary that the shoes may come up big.

But, once the shoes arrived, I was relieved to find that both forefoot volume and overall length were spot on thanks mainly to the great fit at mid-foot. In fact, I doubt that these are roomy enough for true 2E feet. And sizing-up by half on the US scale proved sound.

The only problem was at the heel, particularly on the right foot where some slippage was noted. I wasn’t too concerned, however; my right heel is particularly narrow, making this a personal issue with some shoes.

Quite often, the problem disappears after a few runs, once the shoe is "broken in" and becomes more flexible. And with Inov-8 having supplied an extra "heel loop" hole for the lace, a feature you see more typically on dedicated road shoes, the issue became a non-issue, but be wary if you have particularly narrow heels.


Heel-lock may be necessary if narrow-heeled


The shoes, in a departure from previous models of Inov-8 I had come across, actually appeared "beefy" and robust. Imagine if you will a supportive high mileage daily trainer but with more "down to business" outsole, in this case with 4mm deep treads.

On paper, the midsole stack is not that clunky at 12mm forefoot and 20mm rear, but they sure appear more "built" than any other Inov-8 shoe I've seen.

The upper material is definitely more trail-orientated, with none of the airy mesh of road runners in sight, although this could simply be a function of the Gore-tex lining.


4mm lugs mean business


Liberal labelling on the shoe made no secret of the fact that the shoe is laden with proprietary technology.

It includes Powerflow+ midsole material (enhanced shock absorption and energy return), EHC (Enhanced Heel Cup), Tri-C outsole (made of 3 different compounds for optimizing grip versus durability), and Dynamic Fascia Band, which enhances the "windlass effect" (basically, promotes a more efficient gait).

Add to this Gore-tex in the GTX model which, according to website blurb, is applied using Invisible-Fit, although how exactly this made the shoes feel or perform differently was lost on me, like much of the technology – the proof is, as they say, in the pudding.

At any rate, on the feet, the shoes were comfortable enough that I didn’t think twice about spending a few hours in them for their maiden run.

Road (to trail) test

I set off on a favorite 16-mile route of mine, which takes in a stretch of the hard-packed tow-path on the Thames Path National Trail, then a section of the undulating and groomed dirt trail on Richmond Park, and on the home stretch the much hillier and muddier Wimbledon Common.

The route requires almost 3 miles of running on sidewalk and road past the shops and residences of Putney to reach the Thames tow-path, and the same distance on way back, so this is an ideal test route for any door-to-trail shoe.


Thames Path on unusually sunny January day


The shoes performed as expected and as hoped.

On tarmac, they were firm and responsive with the cushioning and rebound from Powerflow+ midsole much in evidence, although definitely on the firmer side compared to dedicated road shoes.

On groomed trails the Parkclaw performed like a dream, providing just the right amount of grip and assuredness required. Even on moderately technical trails, the shoes – contrary to earlier fears, given the stack height – provided decent foot-feel, in fact rivaling many other moderately cushioned trail shoes.

While running on the Thames Path stretch, I remembered back to the 100-mile ultra I completed in May 2017 (Centurion Thames Path 100) and thought these would be the ideal choice should I decide to take the challenge on again (in the non-Gore-tex version probably since the race is in May).

Incidentally, I did the race in La Sportiva Helios SR, my review for which can be found here.


Well-suited to a variety of terrain

More trail shoes than road

Having put more than 100 miles on them since that initial long run, over varying distances in various weather conditions but always on mixed terrain, I concluded that the shoes are not at their best on tarmac, despite their purported versatility (the shoes can be found under both Road and Trail on Inov-8 website) – I found them firm but not responsive enough, possibly due to the 4mm lugs?

But, despite that, or perhaps because of that, they are awesome on trails.

To be fair, on tarmac I reckon they are still better than pretty much all my other trail shoes, with the exception of On Cloudventure. Once out on the trail, they are no doubt better than 100% of all my road shoes, and often better than many of my other trail shoes.

While I wouldn’t necessarily wear these for running exclusively on the tarmac, I wouldn’t hesitate to wear them for any runs on trails, as long as they aren't too technical or quagmire muddy, and for any mixed routes which are 30% or more trail.

As the term "door to trail" implies, these are what you would wear to go running primarily on trails.

They are, however, not for the sloppy deep mud. For something better suited for such conditions, refer to my review of Salomon Speedcross 4 CS here.

Feet kept warm and dry

And I would always go with these if there is any remotest chance of rain/snow or moisture underfoot.

While the thought of feet overheating due to the Gore-tex membrane did occur to me, in practice this never became an issue. Sure, this could be due to the colder temperatures, but I had chosen this model specifically for winter use.

And the waterproofing worked so well that I found myself looking for wet grass to run through just so I could test their limits. (Besides, as every trail-runner knows, this is the best way of ridding the shoes of mud!) It's a wonderfully liberating feeling to run through wet grass and puddles knowing your feet will stay warm and dry.

Oh, and don't expect the shoes to weigh exactly 275 grams (or equivalent in your size).

In fact, due to the Gore-tex membrane, the shoes are going to come in about 10-15 grams heavier. In the case of my size 11, the Parkclaw came in at 323 grams versus the non-Gore-tex Trailroc 285, which weighed less at 315 grams.

And as mentioned my advice regarding sizing would be to go up a half for US scales while sticking to your usual in the UK and EUR.

A final minor point: given the intended nature of their use, at least for me, for darker winter months, it would have been good to have more reflective features on the shoe, which currently is limited to just the foot logo in the heels.

But as said, it's a minor point and just underscores the fact I struggle to find anything really negative about Parkclaw.

Trail shoes at heart

In conclusion, the Parkclaw 275 GTX is a versatile shoe well-suited for handling both road and moderate trail in wintry conditions, albeit with a definite bias towards the trail.

It is an ideal door-to-trail shoe and has become my go-to shoe for my mixed-terrain long-slow runs for the next few months, at least until late Spring.

The shoes excel in longer distances at a slower pace and are well-suited for a fall/winter ultra in moderate trails. Ultimately, these are trail shoes, designed and made by a company firmly rooted in the off-road.



I received the shoes courtesy of RunRepeat in partnership with Inov-8.

The initial pair arrived with a couple of minor cosmetic faults.  I was however unsure whether I should raise the flag on this – not wanting to look a gift horse in the mouth etc – but in the end, decided to alert Inov-8 since that would be the fair thing to do.

To my surprise, unsolicited, a replacement pair arrived the very next day, along with this explanation from Inov-8 Head of Production Control: "We take product quality very seriously and we do strenuous tests on all our products. The industry average for product failure is 1.5%, our failure rate is 0.93% for 2017.  However, making shoes is a technical process because there are so many different components. We have produced over twenty thousand pairs of the new PARKCLAW GTX, unfortunately, one or two will slip through which don’t meet the standard that we expect."

Needless to say, the replacement pair was immaculate.

Kudos to Inov-8. It clearly is a company which cares about product standards and is willing to stand by its products.

| Level 4 expert Verified
I am a runner. Running shoes are my tools of trade, and I take my tools seriously. I believe in the right tool for the right job and find joy in both the search for, and when matters come together to result in an enjoyable outing. Trail, road, 5k to 100 milers and everything in between- I've done them all!

/100 by , posted on .

I was selected to test some of Inov-8's running shoes. I was excited since some of my ultra-running friends highly recommend Inov-8 shoes and I had never put my foot into a pair.

Plus, it’s the winter season in the mountains which means snow, ice, and mud on all the trails.

I selected the Park Claw 275 GTX as one of the pairs that seemed to fit the season plus the Gortex is always a plus for this season. I waited patiently for a few weeks for the shoes to arrive.



Finally, the shoes arrived and upon opening the box, I was pleasantly surprised to see a shoe that was pleasing to my eye.

The black and red colors are not only the same as my college school colors but are also among what I think is one of the best color combinations. I dislike white shoes since everyone can tell when you just got a new pair and anyone who doesn’t know that you run thinks you’re a newbie. 

The shoes have a tough thin flexible toe guard which I thought would provide good protection against rocks.

The soles look rugged and like they will grip some of the toughest slickest terrain as well as last for many long miles. I couldn’t wait to get these shoes onto the tarmac and into the dirt and it wouldn’t take long.


The first run in the Park Claw 275 GTX came the next day after they had arrived and they would be tested in snow and ice on the road. We had received a decent snow which kept me from getting to the mountain trails but snow and ice packed roads would be a good challenge for the shoes. 

Arch Support

Once lacing the shoes up, I found that the toe box was very wide which I was worried would cause some slipping inside the shoe and there was little to no arch support.

The tongue of the shoe had lots of cushion which I like especially for long runs when my feet begin to swell. Out onto the road, I went with my faithful canine running partner. 

The first mile was brutal in this shoe and the lack of arch support caused me great foot pain. Along with the foot pain, the soles had little to no flex especially in the forefoot which results in annoying toe slap. 

Another issue I was having was that because of the wide toe box, I had to pull the laces a bit tighter than normal resulting in a hump (bubble) just below the bottommost lace. 



I don’t know if it was due to the bubble or to the Gortex but the top of the shoe created a sound that I associate with the sound of a piece of sheet metal or plastic being shaken whop whop whop.

I figured that I would get used to the sounds and break the shoe in so that it would be much more comfortable after a few miles.


I was being cautious during this first run due to the snow and ice along with this being a new shoe that I wasn’t familiar with. The amount of grip on the soles made me feel slightly more comfortable though.

Around mile 5, I was crossing a large thick piece of ice so I slowed way down and was being very cautious when the tread gave out and I found myself on my backside sliding down the road.

To say the least, I wasn’t expecting to go down and the appearance of traction was just that an appearance. Luckily, the end result was just a busted ego and hopefully, no one saw me fall beside my dog.



I wasn’t going to give up on the shoe since I was to test it out and I’m happy to say that I was able to put in over 200 miles in this shoe with no other falls, however, I was much more cautious on following runs.

Of the 200+ miles, 95% of them were on trails in the mountains of Idaho. Most of the terrain was muddy or snow packed.

The shoes have don’t self-clean in the least, if on mud plan for the tread to pack full.



The construction of the shoe seemed to be well built and with the added benefit of having Gortex to keep the feet dry during wet runs.

The Gortex performed flawlessly in my right shoe but the left shoe always leaked.

I wanted to get some video of me crossing over some flowing creek crossings but I couldn’t ever get anyone to run with me to film the crossings and the films I shot never turned out. I did take some photos of the shoes in the sink.



The tongue of the shoe is stitched up to the third lace hole and you can see from the pictures that the water level is below this area.

The left shoe leaks and can be seen in the picture below. It seems that the shoe leaks between the sole and the upper material.



As one should expect the Gortex keeps your feet dry unless you go deeper than the third shoelace eyelet where the tongue is sewn to the side of the shoe. Due to the Gortex the doesn’t breath at all, this in turn, builds tons of heat. 

Even in our single to negative degree temperatures, my feet are always super-hot in these shoes. This wouldn’t be a huge issue until you run 30 miles or so and the amount of moisture results in wet feet and blisters. 

One should weigh the options of how many creek crossings they will have with how many miles they plan to run; what benefit works best, water barrier or lack of breathability.


The durability of the shoe should be questioned especially if you plan to run on the tarmac.

I felt that the soles wore out quickly considering they were used mainly on soft mud. This time of year, it’s hard to get up into the rocks due to a few feet of snow covering them. 



I’m a very neutral (don’t pronate or supinate) runner with an average sized arch.

While I don’t pronate I do like to see how well the shoes work under my weight and stride, you can see from this video that the shoe holds up to impact well and doesn’t allow much if any foot roll (might be why they are so stiff).


  • What I liked most about the shoes is their color and the toe guard


  • What I liked the least, the lack of arch support


In conclusion, I’m not really sure where this shoe fits best since it is not good on the road and it lacks the traction to be a good trail shoe. I will say that I was able to cover some trail runs, while in California on business, and they worked well on dry hard packed dirt.

For frozen ground or rocky muddy terrain, this shoe just doesn’t have the bite to the claws to work well enough to keep me grounded.


Buy these shoes if - you are running desert trails, are flat footed and cover short mileage 3-5 miles a few times a week

Don’t buy them if - you are on technical slick trails, have any arch to your foot what so ever and cover longer distances

Other shoes you should consider - Scott Kinabalu RC

| Level 3 expert Verified
I’m an avid runner, continually training for marathons and ultra-marathons, typically covering 50-140 miles per week. I ran my first 10K at 6 years old, ran NCAA Division I in college, and later ran for a shoe store. I now run for the fun of it but I still try to push myself to average 6 min/miles through marathons.

/100 by , posted on .

When I heard that Inov-8 were making the Parkclaws I was pretty excited. I have owned several pairs of Inov-8 shoes up to this point and for trail running they have been fantastic.

I am also a big fan of Parkruns so when Inov-8 announced they were making a shoe for running to the park, around the park and back again, I was definitely intrigued and could not wait to see if they could live up to my expectations.

I was lucky enough to be sent a pair by Inov-8 to test but I have tried not to let that affect my opinion of them. Despite being the happy owner of many running shoes the idea of a do everything shoe is too good to resist.

Could the Parkclaws really be that shoe?



The design here is very similar to the Inov-8 Trail Talon 275s as you can see from the picture below (Parkclaws are on the left).

This is absolutely no bad thing as the Trail Talon is a comfortable, relaxed looking shoe that fits straight out of the box so I am not surprised that Inov-8 have stuck with the design.

The Parkclaws have a broad synthetic mesh upper with excellent protection around the toe and heel.



The collar and tongue are thick and well-padded with a thick, chunky sole underneath. There are tabs on the heel and tongue to help getting the shoes on and off but the tongue tab did get in the way a bit when tying the laces.

A small thing which probably tells you how good I think these shoes are. The upper is made of a single piece of lightweight mesh which is flexible and easy to clean.

The chunky look and feel mean they could just as easily pass for a lightweight hiking shoe as a trainer and you could happily wear them casually all day as well as running in them.

How do they feel? 

There is lots of padding around the tongue and collar which makes the Parkclaws comfortable straightaway.  These are one of the most comfortable shoes I have ever tried, almost slipper like.



The upper is wide and the toe box is very roomy meaning your feet have plenty of room to swell and they never feel tight or constricting. They are true to size and the 10.5s that I wear in pretty much all running shoes were fine.

The laces and eyeholes are excellent. The laces grip well and the holes provide plenty of adjustment options meaning your feet remain secure with no slipping or rubbing even though they never feel tight.

The laces have a rough texture that means once tied there is no chance of them coming undone.



The Parkclaws feel light and soft with the cushioning obvious when you put them on. They feel quite wide compared to a road shoe but also robust and secure and I expect them to last well.

They do not feel snug and your feet never feel squashed or restricted which is good. However, if you like your feet to be cosseted and hugged by a shoe you won’t get that with the Parkclaws.

The Goretex membrane means they are cosy in the cooler months but they I don’t expect them to feel too hot when the temperature rises though I have only tried them in cooler conditions so far.

The Parkclaws are not particularly flexible but that adds to the feeling of robustness and strength and gives me the confidence to carry on when I might have turned back in something less substantial. 

My feet always felt planted on the ground and I was never worried about slipping or turning an ankle.



I have run with the Parkclaws on the road to reach a trail and they felt fine. The Powerflow midsole gave plenty of cushioning and energy return on the road and once you get off road they carry on quite happily.

The grip is good on packed trails and grass but I will stick to the TrailTalons or Mudclaws when it gets muddy as the lugs on the Parkclaws are not that deep. Coupled with excellent Goretex membrane they are great for running through damp grass and do feel properly waterproof.

What about underneath?

The sole of the Parkclaws is not that different to a sturdy road shoe such as the Mizuno Wave Inspire or Asics GT-2000.

The lugs are a little deeper as befits something that is going to tackle more trails but the shape of the sole overall is like a road shoe. The lugs are well spaced around the perimeter of the shoe and early impressions suggest they should be fairly durable.

More suited to packed trails and grass than muddy or rocky routes, grip levels are good providing plenty of confidence when changing direction.

The midsole provides lots of cushioning so the Parkclaws feel very soft and cushioned and I would be happy to go long distances in them. 



Compared to the Trail Talons the lugs are smaller and closer packed which is what I would expect for a shoe designed to tackle pavements on the way to trails.

There is also less protection underneath on the Parkclaws but on the few runs I have done so far this has not been a problem due to the thickness of the midsole.



The Parkclaws, though not heavy or cumbersome, are more about comfort and long distance than all out speed. They are well cushioned but don’t feel fast and nimble but then that is not really their point.

They would be ideal for longer trail runs, up to half marathon and beyond but if I was looking for a 5k or 10k trail PB I would go for a Terraclaw or Trail Talon 235 instead as they give a lighter feel and a better idea of what is going on beneath your feet.

However, for running all day on a variety of terrains the Parkclaws would be hard to beat.



I have run a Parkrun and a few 5 to 10k training runs in the Parkclaws so far and the cushioning and grip has been excellent. No tired or aching feet here.


The Parkclaws are like a pared down version of the TrailTalons. The uppers are almost identical but underneath the Parkclaws have more cushioning and a bit less grip making them ideal for running on the road to do some light trail running.

They are also ideal for park running where the terrain changes regularly or on longer runs where you know the surfaces will be changing. The Goretex membrane works well at keeping the water out without feeling too warm.

I have only tried them in autumn and winter so may need the non-Goretex version for when the temperature rises. But at the moment, when it is damp and chilly, they are perfect.

There is no doubt the Parkclaws are an expensive shoe but I feel like you are getting more than one pair of shoes.  If I could only take one running shoe on holiday I would take the Parkclaws.

They can cope with pretty much all terrains for running, can cope with a hike and are stylish enough to wear casually as well. The quest for one shoe fits all just got a little bit closer.

I am grateful to Inov-8 for sending me the Parkclaws to test.

| Level 3 expert Verified
Hello, I am Paul Myatt and I have been running for about 3 and a half years. I run about 25 miles a week on a range of different surfaces in all weathers and am lucky enough to have far more running shoes than I need. I have tried shoes from all the major brands and my current favorite brands are Skechers for races, Nike for road training and Inov-8 for hitting the trails. I have run a marathon and several half marathons but I really enjoy 5 and 10k races and a good speedwork session. Having tried a range of distances and bought more shoes than I should have, I am confident I can pinpoint the strengths and weaknesses of a shoe and what it is most suitable for. Nothing beats a shoe that feels just right and I like nothing better than telling anyone who will listen why that is.

/100 by , posted on .

Inov-8 claims the Parkclaw 275 GTX to be some sort of all-rounder and they’re not lying!

Out of the three pairs of trail shoes I’ve been testing (the other two being the Inov-8 Trailtalon 290 and the Vivobarefoot Primus Trail FG) these come out on top in almost every area and on every terrain.

I’ve hit hard and soft trails, groomed tracks, rough and smooth pavements, wet sand, dry sand and every form of mud I could find. They demolished the lot!

I particularly enjoyed running along the beach with the sea lapping my feet when I was testing the GORE-TEX® bonded upper.


Tech Specs





Lug Depth




Midsole Stack

Heel 20mm / Forefoot 12mm



Sole Compound


Product Weight - From website

275g / 9.625oz

Actual Weight - As weighed by myself, size 45EU

335g / 11.82oz


I have to say that at first, I quite liked the styling of the Parkclaws, but over time I'm not too sure anymore. They're not too flashy and the red accents them nicely but I definitely couldn't wear them all the time. That's not to say they're ugly trainers but they're not really for me.

As you can see from the tech specs above there's a fair bit going on with these shoes. They have an 8mm drop, which is far too much for me as a mid to forefoot striker. It means I have to really overcompensate when I shouldn't need to. After all, if I was meant to have a slope on my feet they surely would have evolved to have that, right? (Just my personal opinion on this and I won't go into it too much today).

Anyway… that aside the sole/midsole combination work really well in terms of performance, I have no idea what DFB means so we'll skip that one for now but on the Inov-8 website they help to give some information on the Powerflow+ technology which they claim delivers 10% better shock absorption and 25% better energy return than standard midsoles.

I actually think this might not just be sales bluster because for me the energy return the Parkclaw 275 GTX offer is fantastic, even when compared with their own Trailtalon 290 which seems to have a similarly named sole technology. It just doesn't work anywhere near as well.

The upper is a Gore-tex membrane that's been bonded directly to the upper fabric (which I have no idea what it actually is).

Inov-8 claim that this eliminates wrinkles and folds in the upper, so pressure points and blisters are significantly reduced and freedom of movement and flexibility is increased.

I definitely do not agree, (see flexibility section below!) and I think the need for waterproof trainers might be a bit more of a niche market. I for one regret choosing them over their non-waterproof variant.



There aren't a tonne of safety features to talk about here, though the ones worth mentioning are the durable upper with additional toe bumper, which seems to be some sort of rubber layer. It works sufficiently, at least I've never suffered any toe stub pain as yet.

The tongue is also webbed so debris and/or wildlife (horses, rabbits, tigers… you know the sort) will find it very hard to work their way inside to cause any discomfort whilst running.



Or the lack thereof… These all-rounders from Inov-8 are so inflexible it’s crazy.

For some people, this might be great but for me, I need so much more from a trail shoe. It’s definitely the biggest downside of them.

With the Gore-tex upper things are already stiff, add to that the thick, heavy sole with some form of flex-groove system that doesn't really seem to work that well and you’ve got a shoe that is decidedly rigid.

It’s a shame as it definitely lets them down but you can’t win ‘em all I guess!


The fit is secure and comfortable. My feet feel very snug in them, including in the toe-box which is too tight for me and over longer runs gets less and less comfortable.

The inner and tongue are very padded and although initially comfortable I'm not sure it's all necessary. I don't really mind it all that much but I think the toe box especially could have done with more room to it, or perhaps been a different shape altogether.

The lacing system is fine, nothing to write home about but it works and I can't mark it down at all.


There's no hiding from it the sole on the Parkclaw 275 GTX is going to wear out fast.

The lugs are wearing a lot already after only 60 or so miles as they're quite a soft rubber. Though a lot of my miles have been on the road I still can't see these lasting much past the 300-mile point before there's only enough grip for road only running.

That said, the grip is pretty great though and it hasn't let me down on any surface as yet. I was able to hit the road and stuck to it like glue in all weather conditions.

The same can be said for hard and soft trails, wet grass, sticky mud, rocky tracks, gravel paths, wet sand, dry sand and everything else in between! I really cannot stress how good this shoe is as an all-rounder!



The Parkclaw 275 GTX has a great heel cup! Once laced in my feet were locked in really well.

There's a tad too much arch support for my liking which other people used to minimalist shoes may find intrusive, however, it's not as high an arch as some trainers and isn't unbearable by any means.


The Gore-tex water-proofing is a nice idea but I'm not really sure how much it improves this offering from Inov-8.

It makes them feel quite tight, restrictive and much less flexible then they ought to be; and with deep-ish puddles or mud, water still gets in the shoe over the top and they don't drain so well.

It only really works to keep your feet dry with shallow puddles or running through surface water but even then if any splashes over the top it's in there.



It's a novel idea but I wish I'd gone for the non GTX (waterproof) version as I think those would probably be lighter and more flexible and I don't really mind if my feet get wet every now and then. The Trailtalon 290 is a good example of how the upper would have been better than the one on this shoe.

I did enjoy testing the water-proof-ness of the Parkclaws, to see just how far I could take it but that was about as good as it got…

Negatives aside these shoes perform incredibly well. Especially considering their weight (and the fact that I'm used to running about in Vivobarefoot Stealth 2 and Vibram FiveFingers KSO Evo )!

As I mentioned in the grip segment they ate up every surface I could throw at them.

I even managed a 10 mile PR in them in the midst of my 'Run Every Day January’ challenge, something I did not expect to happen! The following week I smashed a half marathon in them!



If the Parkclaw 275 GTX’s had the upper from the Trailtalon 290 (see review here) with the zero drop and toe room of a barefoot shoe like the Primus Trail FG (see review here) I would never ever take them off.

They come very close to being an incredible shoe and are currently my go-to shoe for anything off-road.

| Level 4 expert Verified
I'm a 33-year-old British Army veteran with a passion for running and fitness. I've been running on and off my whole life and competed in multiple track and cross country events when I was younger as well as being a competitive swimmer and squash player. In recent years, I have completed several half marathons and aim to run both full and ultra marathons in the not-so-distant future. I run anywhere between 10 and 50 miles a week depending on how much time I have outside of my family life. I am married with 3 daughters so I'm always very busy! My favorite brands for running are Vibram, New Balance, Inov8, Under Armour, Nike, Altra & Newton.

/100 by , posted on .

If I have to use a phrase to describe Parkclaw 275 GTX, it would doubtlessly be aggressively specialized. When I first tried them out, I thought the company must mistakenly mark it as a versatile shoe. 

In my opinion, versatile shoe  (Nike Pegasus would be a good example) means generally soft cushion and energy return without focusing too much on its grip, weight, or any additional features. On the other hand, Parkclaw 275 GTX is equipped with very effective grip, waterproof uppers technology, and firm midsoles compared to trail shoes from Altra and Hoka

These features seem to make up a perfect shoe for tough adventures in the wilderness. Let's be honest, how often do we need a fully covered Gore-tex shoe for a relaxing run in the nearby trails? Therefore, I believe Parkclaw 275 GTX is a pair of versatile shoes made for the enthusiast of hardcore adventures.



Arch Support    Weight Heel Drop Forefoot Height  Heel Height     Width Release Date




        16.5mm          24.5mm         Normal           N/A


The Parkclaw 275 GTX upper is made out of protective mesh with Gore-Tex Invisible Fit Technology. It makes the shoe protected from sharp trail debris and waterproof against most of the conditions. In the real test, they worked out exactly as described.



Parkclaw 275 GTX's midsole features Inove-8's Powerflow+ technology. According to the official website, Powerflow+ delivers 10% better shock absorption and 25% better energy return than a standard midsole. 

While Nike just claimed its best technology has 4% better energy return. To claim a 25% better energy return is skeptical at first, but in the real test, the sole is actually much firmer compared to Hoka and Altra's shoes. 



Gore-tex technology

The Gore-tex technology is certainly a huge attraction to many trail runners, especially for those living in a rainy area. The name of Gortex can guarantee that this is not some flashy water-resistant technology that only works when you only step into the puddle for once.

Once I had an hour-long run on a pouring day where the roads were flooded; in contrast to the horrible weather, the run was actually pretty enjoyable since not a drop of water slipped into my shoes throughout the entire hour. The Gore-tex technology makes Parkclaw suitable for adventures in wet areas.

Effective grip

Another noticeable feature is the outsole grip. As a New England resident in the rural area, running in the winter is sure troublesome, when the road is often covered with thick layer of slushes.

Even though these grips were not made for snowshoeing, they kept my feet firmly attached to the ground when there was an inch of slush. Certainly, they worked equally outstanding on other rocky or wet surfaces on a trail.


Lastly, the great durability is also very commendable among the trail shoes. The front tips are covered with a hard rubber material which can protect the shoes against rocks or other terrains that could damage the shoe.

Similarly, the heel of the shoes is wrapped around with much more supportive materials compared to normal running shoes. The rear part literally boxes your foot in and provide extra support to ones running motion on uneven and treacherous terrains.


Some unpleasant features

Unexpected firm midsole

While the company claims that the midsole has a 25% better energy return, the data seems to be much boasted. It certainly feels cushy when one puts it on. However, when one starts running, the same cushion does not last in the intensive actions.

Also, compared to the shoes from famous companies like Altra and Hoka, Parkclaw’s midsole is noticeably harder. Therefore, the Powerflow+ technology makes it a better shoe for speed running than for relaxing jogs.

Low heel drop for heel strikers

Due to a rather low heel drop and to the firm midsole, while Parkclaw 275 GTX works well on the forefoot strikers, it is unkind to heel strikers. When heel striking, it is very hard to feel the responsiveness of Inov-8’s technology.    

Final thoughts

Overall, Parkclaw 275 GTX is a rather specialized trail shoe for the enthusiast of adventures. If you like hardcore wilderness, or a forefoot striker and craves to run fast on the trails, the Gore-Tex, grip, and midsole will become very handy to you.

However, if you prefer more relaxing runs or are a heel striker, even though the Gore-Tex technology is compelling, this might not be the best trail running shoe for you.

| Level 1 expert Verified
Leo is a running enthusiast in Western Massachusettes. He dedicates half of his everyday life to running and crushes a 5k every weekend. He also has abundant experience with shoes and how they perform on different surfaces since he does road, trail, hiking, and track races all the time.

Updates to Inov-8 Parkclaw 275 GTX

  • While it is primarily a trail running shoe, the Inov-8 Parkclaw 275 GTX is designed to be versatile; it delivers a solid performance on the trail, yet also offers sufficient cushioning to take the runner from home to trail and back. The shoe is ideal to use in fast-paced runs, as well as slower recovery runs.
  • The shoe prides itself as one of the first to use the Gore-Tex® Invisible Fit, ensuring the upper stays waterproof. This recent technology delivers a structure that is lighter and more flexible than before.
  • Meanwhile, the POWERFLOW+ midsole of the Parkclaw 275 GTX is perfect for heel strikers, thanks to its 8-mm drop. It has an improved structure that delivers 10% better shock absorption and 25% better energy than traditional midsoles. It sits on an aggressive Tri-C outsole that is relatively noticeable on wet rock or tarmac.

Size and fit

The GTX version of the Inov-8 Parkclaw 275 is built to fit true to size, as it follows the standard length of running shoes. The shape of the shoe is broad in the forefoot, to promote a natural and comfortable toe splay, and slightly narrower towards the heel, to secure the foot in place. The shoe is designed as a unisex running shoe while following men’s sizes. Inov-8 classifies the Parkclaw 275 GTX under their Fit Scale as a “5,” which is roughly equivalent to the 2E – Wide profile running shoe.


A triple-compound rubber, aptly called Tri-C by Inov-8, is used as the outsole of the Parkclaw 275 GTX. This material is comprised of three types of rubber to give the shoe all-around, no-fail protection and traction. In the midfoot and arch areas is a soft rubber that provides a comfortable landing spot, the forefoot area has a flexible rubber that allows an effortless toe-off, and the heel region is covered with durable rubber that intends to resist wear and tear.

A section of the forefoot has a set of Meta-Flex grooves, which enables a smooth bend and forward propulsion for a quicker and more powerful pace.

The 4-mm deep lugs of the Parkclaw 275 GTX permit the runner to traverse snowy roads and muddy paths with minimum effort. These lugs are distributed widely and evenly across the outsole to reduce clogging.


The POWERFLOW+ technology equips the Parkclaw 275 GTX with the most cushioned midsole among all of Inov-8’s running shoes. They provide the foot with a firm and responsive sensation that offer more ground feel.

With the shock-absorbent capability of the POWERFLOW+, forward spring is achieved immediately. The cushioned midsole material also aims to protect the underfoot.

The Dynamic Fascia Band (DFB) shank is a thermoplastic polyurethane plate that stretches across the length of the shoe. This element branches out to follow each metatarsal for natural responsiveness.


The classic Inov-8 upper material levels up with the help of the Gore-Tex® Invisible Fit technology. This new detail integrates the Gore-Tex® waterproof membrane within the textile base of the running shoe. Aside from shielding the foot from water and wetness, the Gore-Tex® Invisible Fit offers more comprehensive protection during inclement weather, as well as a flexible fit that results in more natural movements.

In addition to the features above, the unique structure of the Gore-Tex® Invisible Fit eliminates wrinkles and folds in the upper, therefore reducing blisters and hot spots.

An external heel counter wraps the rearfoot portion of the shoe to provide adequate support in the heel. With this feature, the shoe is able to increase stability in foothold and maintain a better gait.

Facts / Specs

Terrain: Trail
Weight: 9.7oz
Drop: 8mm
Arch support: Neutral
Base model: Inov-8 Parkclaw 275
Forefoot height: 16mm
Heel height: 24mm

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Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.