So after getting back into running after several years of nothingness I just went for some "whatever" running shoes. I didn't really think too much about it. Went through one pair and then bought another different pair of "whatever".
However after about 300 miles in them, I started to ramp up my training ready for a marathon I was planning on doing in October this year, and boom! Shin splints... I tried to run through them and it has resulted in me needing to get an x-ray on my leg for a suspected stress fracture... Bad times!
(Worth pointing out that it was definitely a combination of too much too quickly, poor form and, I think, bad shoe choice that caused my injury.)
I've taken this 'opportunity' to take a look at my running. I decided that I need to sort my form out and following a lot of research I've decided to try out barefoot-style running.
I'll need to start slowly anyway because of my injury so it's the perfect time to start a transition to barefoot running.
Enter the Vibram FiveFingers KSO EVO... Excuse the pumpkin, I couldn't help myself!
These things look crazy! But in some slightly insane way, I also think they look really cool, especially once they're on your feet!
Everything about these shoes feels as though it was well thought out.
You get a real sense that the guys at Vibram really wanted to create something great for feet everywhere. They are so light that you could almost forget you have anything on your feet when wearing them. They're very comfortable and are meant to last for miles upon miles.
They really do fit like gloves for my feet.
The padded tongue adds a lot towards comfort in these shoes which is surprising considering how slight it is.
The quick lace-up system is genius, probably my favourite feature of the shoes because it makes life so much easier as well as adding a lot of security.
The amazingly comfortable fabric that encases your feet when you have these on and the fantastic sole come in close behind the laces.
I already know I'm going to get more grip out of these shoes than from my old conventional trainers. They stick like glue to my wooden flooring at home at least. Everyone knows that Vibram makes brilliant soles for shoes but these uber thin ones are incredible.
They really have hit the mark with the design here. It's responsive and flexible but feels like it'll offer enough grip and protection for all of the road and light trail running that I do.
The insole (the one that's barely there...) somehow feels more comfortable than my old running shoes even though it's mega thin! I guess that must come down to its quality.
It feels soft, firm and supportive all at the same time somehow. Time will tell how well this will last but so far so good.
Putting these shoes on for the first time feels a bit odd but I'm already getting more used to it. With the lacing system tightened, my feet feel snug in them.
It almost feels like I could just run and climb a tree without even worrying about it. I keep finding myself wanting to jump around randomly because they feel so good.
First impressions wise I really like these shoes. They feel very well made and I'm excited to take them for a proper spin. I couldn't resist for long!
After wearing the Vibram FiveFingers KSO EVO all day long, they got more and more comfortable. They were just moulding to my feet perfectly.
The feeling is actually really hard to describe.
By the end of the day, it felt as though they had been sprayed on to my feet! So I just went for it, a quick 2 mile run around the block. Really easy of course! (Slow and steady post injury and beginning barefoot running).
You can really feel the ground through the soles of these shoes, especially the rough bits. It's going to take some getting used to, especially where I run primarily on pavements and hard trails.
Having said that there was something sort of thrilling about it too. The feeling of the ground and the control you have over your body with these on is something else.
The grip was very good. It didn't get tested to any extremes so I cannot say how it'll do over time but so far it feels better than my last pair of conventional trainers.
I think it's not even just the sole that helps in this area though.
As I mentioned before the extra control you have in these shoes is amazing and I think that definitely helps when it comes to grip. You're able to easily make adjustments as you run to maximize traction.
My running form changed pretty much immediately after setting off for my run as well. A combination of these shoes and being very conscious of my leg I'm sure, but it felt so much easier on the rest of my body.
My feet are aching but my shin is not and that is something I've not felt for some time now. You're forced to run on your forefoot in these shoes and that, in turn, increases your step count, or at least that's what happened to me. Both of these things are ideal for form and reducing injury too which is great news!
Here's an image of the shoes post run. They still look brand new! Just brilliant!
I am so happy with these shoes, I can't even take them off now!
I would recommend them to anyone who's having shin splint or stress fractures woes! You won't regret it!
The KSO EVO offers just about everything in terms of the anatomical and efficiency benefits of a true barefoot experience.
If you are interested, I go into much greater detail on the personally-tested reasons why I believe every runner should at least train with barefoot shoes - in this review here.
Interestingly, the KSO is marketed by Vibram simply as “training shoes”, with no indication of the term running anywhere. At first, I was a little concerned with the vagueness of this label because I wasn’t sure then if the KSOs were actually designed to be taken out for long runs on the pavement.
That said, after running over 70 miles in the KSOs, this did not prove to be an issue. While Vibram could perhaps do a better job overall delineating what models are meant to serve what purposes, I also think that the very absolute minimalist nature of their shoes makes most of them suitable for barefoot running anyway (the outsole is really the most important part).
So for full clarity, I will be reviewing the functionality and quality of the KSO EVO specifically as a running shoe.
My first experience with Vibram FiveFingers was with the VFF Bikila EVO, with which I went through two pairs and hundreds of road miles.
Given this, I found it appropriate to use the Bikilas as a benchmark barefoot shoe as I compiled my thoughts for this review on the KSO. Even still, readers will not need to have an understanding of the Bikila itself to understand this review of the KSO. So without further ado, let’s begin!
Comfort and fit
I wear a US men’s size 9.0, which equated to a size 42 for the KSO (VFF uses European sizing).
The fit felt great, and what I especially like about the KSO is that even though I need to get extra wide (EE) for typical running shoes, the KSOs still fit well because the mesh frame of the upper is intended to match the shape of the wearer’s foot. My toes were able to splay freely and comfortably.
Unlike the Bikilas, the KSOs make use of a relatively thick and plush tongue. It feels good on the top of the foot, but I personally feel this was a rather immaterial feature of the shoe (the Bikilas used a paper-thin tongue that also felt good).
In identical fashion to the Bikilas, the KSOs deploy a lock-lace style lacing system that makes it extremely easy to adjust the shoe to your liking. This is one of my favorite features of the shoe and it makes for increased convenience and control of fit.
Like all FiveFinger shoes, the outsole boasts the trademark Vibram outsole that prides itself on traction and light weight.
I ran in the KSOs several times in wet and rainy conditions and felt no issues with traction. Compared to the Bikilas, the outsole of the KSO boasts an upgrade in durability. After 70+ miles in the KSOs, the outsole pattern still showed no signs of any fading.
While this may be normal for typical running shoes, I find this to be impressive for a FiveFinger model based on my experiences. That said, I did notice that the outsole of the KSOs is a lot stiffer compared to that of the Bikilas, so I imagine that the outsole is made of harder rubber. However, this stiffness did not appear to cause any real downsides.
Also note that despite this stiffness, I still felt things such as rocks, gravel, acorns, etc. underneath my feet. A defining and superb trait of VFF (and running barefoot in general) is the ground feel, but be sure to be aware of hazardous objects and surfaces.
Another feature I liked in particular about the outsole is that it seemed to wrap slightly up and around the sides of the foot. This is a clever feature because it actually appears to protect the KSOs upper from scraping against the ground when the foot is splaying.
I was also impressed by the durability of the KSO’s upper. After 70+ miles, all sides and angles of the upper still appeared free of wear and tear. I believe this is due in part to the design of the outsole as described above, but in addition, the upper material is relatively thick compared to the Bikilas.
The potential downside of this is that, despite the small ventilation holes, I still found the shoe a lot less breathable than the Bikilas, and my feet would get pretty sweaty (VFF shoes are all machine washable). The flipside of this is my feet still stayed pretty warm even on colder runs despite my lack of socks.
On road performance
For those who are accustomed to barefoot running and FiveFinger shoes in general, the KSOs are a great option for both daily training and road racing. The durable and highly gripping outsole allowed me to step confidently while upping the pace.
And as a barefoot shoe, the KSOs will help make my average cadence faster and my form more efficient. I took the KSOs for 9-mile pavement run and had no major issues, and could have comfortably run longer. My only qualm with the KSOs is that I had to tighten them a little more than I would have naturally or intuitively.
I originally did not do this, and after 4 miles or so during runs, I would begin to feel blisters on the bottom of my feet forming. So even though the shoe felt completely comfortable and properly adjusted, there was actually enough subtle wiggling going on to amount to blisters after enough miles. After being cognizant to adjust the shoe very tightly before runs, the issue seemed to disappear. All in all, this is a great shoe to train and go fast in.
The KSOs are an ambiguously categorized shoe that I’ve determined works well as a highly responsive and lightweight running shoe on road surfaces.
In spite of its minimalist nature and appearance, it exhibits a high level of durability that makes it more worth the money than meets the eye. The outsole is stiff and provides good traction even in wet conditions.
The upper is slightly less breathable than other VFF models but still allows for a flexible fit for your foot shape. I would recommend this shoe to all barefoot fans, with the differentiating factor being that runners will be able to get more mileage out of the KSOs than might be expected.
In terms of additional features, I think VFF should include reflective material or designs on future models, as more safety features are always on my preference list.
Before you read any further I think it is important to mention that the Vibram KSO Evos were the second minimalist shoes I have ever trained in and the first ones I have used for an extensive period of time.
Transitioning from training in fully cushioned shoes, I decided to take the transition to the Vibram KSO Evos slowly. I began by doing most of my warmups, cooldowns, and gym training sessions in the FiveFingers. Half mile cold downs turned into one mile runs, one mile runs into two, and before I knew it, I was running four and five-mile runs in what felt like no shoes.
Personally, for my running type, four-mile runs are where I would stop it with these shoes. At the four mile mark, my feet began to get sore and I consider wearing fully cushioned shoes again.
No matter what color you decide to go with, there is no question that these shoes stand out.
The red and black design that I have pop like no other shoe. Trust me when I say you will have people asking what you are wearing on your feet.
Of course, looks are suggestive, but I personally wasn't fond of the design. Admittedly certain color options do look better than others. My personal favorite color is the all black because it doesn't stand out as much.
Upper & breathability
After running about 60 miles and putting in over 20 hours with these shoes in the gym, I was disappointed with how much they made my feet sweat. Short runs and workouts were fine, but my feet naturally run hot and I made the decision to not wear any socks with these shoes. That was a bad idea.
Even with the very noticeable breathable looking upper mesh, these shoes would quickly collect all the sweat from my feet and stink up pretty badly. I found that rinsing them off after gym workouts and washing them at least once a week did help with the smell, but I worry how they will hold up after being constantly washed.
My personal recommendation would be to wear socks, and on extremely hot days rinse the shoes with cold water before you go on a run. The cold water doesn't last long, but it helps.
Fit & comfort
This has to be my favorite part of these shoes. Putting the shoes on is incredibly easy, once you master to move your pinky toe into the correct slot in the shoe.
Then there is the weight, or should I say the lack thereof. I’ve always been a sucker for lightweight shoes, but this was a whole nother level. It’s not a feeling you can describe. It’s something you have to try to believe.
They are quick to lace up with a simple pull tab, which never gave me any issues with coming loose. There is a little velcro tab that keeps the laces out of the way but doesn’t work very well. Even though the laces tend to come off the velcro, they still actually never loosened up around my feet.
The shoes were surprisingly comfortable knowing how little protection and padding there was between my foot and the ground.
As stated above, the longest run I used these on was 5 miles, but my personal sweet spot for these was 3-4 miles. There are some people who can run a marathon in these shoes, but that is simply not for me.
Outsole & durability
The outsole of the shoe held up really well. The sole didn’t wear evenly for me and I can tell some parts of the shoe will go bald before the rest. For how light the shoe is, and how thin the sole is, I am very pleased with how well they have held up.
The upper mesh of the shoe also held up very well. Even after a few deep washes of mud and grime the upper looks like new. There are even extra rubber parts on the tips of the toes to prevent the toe inserts from getting easily beat up and ripped.
I decided to wear the KSO Evo while doing weight training in the winter season. On a few occasions, I accidentally stubbed a toe while box jumping, racking weights, and once dropping a medicine ball that bounced off the floor and onto my foot.
If I were wearing normal trainers I probably wouldn't even know I hit my foot, but the agonizing pain I felt on a few occasion in these really made me paranoid about wearing these to the gym again.
Clumsiness aside, if you want to use these for weight training they are awesome!
The connection you feel with the ground when squatting or deadlifting give you more control and confidence when compared to most trainers. They are low to the ground and have a minimal heel to toe drop giving you much more stability.
I always judge a shoe by one question: Would I buy this shoe again?
While most times the answer is a firm yes or no, these shoes are a bit more complex than that. I enjoyed running in them, but not as much as my normal trainers. I enjoyed walking around in them, but the looks threw me off. I enjoyed training in them, but my feet often became sweaty after a while.
If I could only buy one pair of shoes it would not be these. If I was looking for a second or third shoe that I could use on certain days at the gym, and have some really enjoyable short trial runs then yes, I would absolutely consider these.
The first thing I noticed was how light and flexible the KSO EVOs are. I was initially worried that the thin upper material wouldn’t last. The toes of the shoes are covered well with the Vibram’s sole, so they are not going to get direct ground feel.
I also noticed the lack of cushioning and foot-like shape of the insole. Along with the shoes was a manual for transitioning to barefoot running that outlined a specific timeline for distances and repetition per week.
The best part was a sticker that said, “You are the Technology”, this made me smile!
I have run over 60 miles on various surfaces and have logged over 7 hours of cross-training with the KSO EVOs.
Running in the KSO EVOs does take transition time if you are not experienced with the barefoot/minimalist style of running equipment. If you have experience with zero drop cushioned running shoes, then you will potentially have less of a transition period.
Cross-training in the KSO EVO was a breath of fresh air for me. I did group workouts like High-Intensity Interval Training (HIIT) classes and strength training sessions. They performed great for both the running and cross-training.
The upper material was surprisingly comfortable when I tried them on barefoot. I thought the shiny material was going to create an uncomfortable feeling, but I was wrong. My toes fit into the toes of the shoes well. It was a little awkward the first time I tried them on, but it got easier to get put them on every time I wore them.
The only issue I have with the upper is where the material in between the toes of the shoes, a mesh-like material, was sewn onto the outsole. After running 7 plus miles on multiple occasions, the area on my right pinky toe where the materials were sewn together created a hotspot and did not feel good.
Fit and feel
The fit of the KSO EVO was perfect. I wear an 8.5 in men’s cushioned running shoes and the 8.5 in the KSO EVO was true to size. I had no issues with the fit of the toes- other than what I mentioned earlier. The forefoot area was wide enough for my feet, which tend to expand greatly when running distance.
The feel was exceptional when running. I could feel enough of the ground to get that barefoot experience, yet the sole took just enough away so that if I landed on a rock it didn’t feel like it cut into my foot.
They let my feet breathe well while working out and did not retain any water when they got wet. I did catch an occasional acorn or twig in between my toes while running and they were a bit difficult to remove unless I stopped.
Socks or no socks?
This is a question you will have to answer based on your personal preference. I prefer socks.
To me, the socks gave me a little extra cushion and provided some warmth when I was cooler out. They take time to get used to as well, but I use them with standard running shoes as well.
Lacing and stability
The quick lacing system was nice. It held together while running and made it easy to get a good fit. They attached to the shoe with a piece of Velcro, so they don’t flop around while you run. It was not necessary, but a great addition to the shoe.
I had a few issues with stability when making sharper turns. Going forward was fine, but as soon as I tried to change direction, I would have to slow down to make sure I had enough stability in my ankles to make the change. These shoes do not provide much in terms of stability which leads to my next point about strengthening your feet and ankles.
The transition period that the manual that comes with the shoes discusses is no joke. Your feet and ankles will need time to adjust to the minimalist style of running.
I will tell you that my feet and ankles have gotten much stronger as a result of running in the KSO EVOs. I can tell a marked difference even when running in standard cushioned running shoes.
The benefits of training in the KSO EVO are worth the transition period. If you are reading this and have an interest in barefoot running, then I would say give it a try.
I am currently a casual runner and was always decent at it though I never pushed myself to jog often. I was always a decent runner in the army (Singaporean men all serve in the military for 2 years) and I easily came among the 70th percentile of the group.
I’ve always been underweight and managed to grow into respectable 63kg in my mid-20s with a height of 1.7m. However, up until a few years back, I was struggling a little bit with weight gain as I was ballooning up to 70kg. Running became uncomfortable as it caused a lot of aches on my sole – something that never happened to me before.
I’ve since shed that extra weight through my weekly soccer sessions but jogging was still uncomfortable. I wanted to jog again to get fitter for my weekly soccer sessions.
I then stumbled upon Vibram which was based on the idea that man was supposed to run barefoot - that our body is mechanically built for running and walking. There was a study about how many African runners, Kenyans especially, started out their developmental years not wearing your fancy Nikes and Adidas but running barefoot.
If it worked for these guys who dominate marathons, surely it would be good for us, no?
Vibram believed that by running barefoot, you’ll be activating and using parts of your foot that you never used to since your feet have been mollycoddled by traditional cushioned shoes. In time, your feet will grow stronger from using Vibram and it’ll possibly improve your balance as you reconnect with your body like never before.
Vibram did get into hot water with these claims as it was not scientifically proven to do so but I really wanted to give this a try to strengthen my feet for soccer and attempt a radically different solution that would not hurt my sole.
Start slow and expect a lot of stares
Many people make the mistake of putting a pair of Vibram on and doing long runs immediately. For many of us, we’ve spent all our lives on cushioned shoes and our body is not used to running barefoot. Vibram makes it a big point as well with small brochures to “teach” you how to progressively use the shoes.
Putting on the KSO EVO is a breeze. You would just need to slip them on, pull on the laces and secure it with the mechanism and stick the end to the shoe tongue with the attached Velcro patches.
I would recommend not running immediately in these but take them out for a walk or even a trip to the mall. Get used to walking on many different types of surfaces from concrete pavements to roads to grass patches. Use this time to reconnect with the enjoyment of moving and feeling things on your feet – just like when you were out playing as a kid.
That said, don’t expect to see any celebrities sporting this on a fashion runway. These ain’t no Yeezys.
The Vibram look bizarre and people are going to point and some may laugh while you do your warm-up walks. Embrace its quirky design but we wouldn’t recommend wearing it on your first date unless you’ve got heaps of confidence and look like Ryan Gosling.
Improving your running basics
What I loved about the KSO EVO is that it got me to reconnect with running basics. If you’re a heel or forefoot striker, you would need to work very hard to change your technique to a midfoot strike. Work on that technique on those long walks before you move on to running or you might find yourself in considerable pain after your runs.
The arc of your foot is meant to absorb the impact of your run and help you spring off. This is what the KSO EVO forces you to work on.
With hardly any protection on your feet, I’ve also had to focus more during my runs to ensure I do not step on any pebbles or rocks. For this, I would recommend running or walking on roads and concrete sidewalks in the KSO EVO due to its thin sole layer.
It would work for the gym as well. If you’re looking to do nature trails, I would recommend one of Vibram’ outdoor shoes like the V-Trek that has a thicker upper and sole to protect you from the elements. However, do note that the Vibram is still extremely thin for a trekking shoe, no matter the model.
How the Vibram KSO EVO feel on feet
I was elated to find that KSO EVO did not cause problems with aching soles. Many ask how it feels to run in them. While it’s not cushioned, I feel that it’s…. just right.
Every step feels natural and isn’t painful and I absolutely love walking and running in them. There’s a thrill in running in these as you’re forced to be constantly aware of your environment, stride and your body like you’ve never done before.
The upper of the KSO EVO is made up of a thin breathable mesh which makes running in them cool – especially when you live in a hot and humid environment like Singapore.
I also noticed that my quads and calves were given a good workout when running in these shoes – especially my calves.
So please warm up properly and cool down with a good ol’ stretch after your runs with a focus on the muscles that feel most worked out.
Disadvantages of Vibram
I recently spoke to a physio who does ultra-marathons and she told me that while she loved her Vibram, they were quite “slow” shoes. What she meant by this was that the hard impact of your feet against the ground caused a dissolution of your blood platelets at the point of impact.
This isn’t ideal as your platelets transport oxygen around your body to reduce the onset of fatigue on long runs and keep you fresher for longer periods. I haven’t put that theory to test but it seems quite logical.
Another disadvantage, on paper that is, is that unlike your Nike React and Adidas Boost technology which aids with a slight bounce in every step, the KSO EVO does not have this effect.
In theory, this bounce helps with an energy transfer and allows you to use less energy to kick off every step. This is also another sound theory but not tested by me.
The biggest drawback I have experienced would be the shocking pain you would feel when you stepped on a pebble or stone. In my 2 years in the KSO EVOs, I never stepped on any objected until my first 10k run.
It was only 3km in when I stepped on a pebble. Adrenaline ensured that the pain did not haunt me for much of the run until the race ended. The soreness stuck with me for a week.
I usually wore my Vibram without socks and could do 2 runs in them before washing them. However, odors started developing even after the wash so I would recommend wearing socks with your runs.
Get “Injinji” toe socks which were made for barefoot running and is perfect with the Vibram “Fivefingers” format. They provide a small bit of cushioning for a slight touch of comfort.
Hand washes with cold water and some detergent and air dry, preferably under the sun. As it’s really humid here in Singapore, they do take a longer time to dry (possibly 18 hours) unless I can sun them which may cut down the drying to half a day.
The mesh upper is easy to dry but there are some suede liners around the cuff of the shoe which takes a bit longer to do so due to its thicker material.
I’ve noticed a splitting of the upper from the rubber base around the lateral and underside of the big toe on the right foot. I’ve had the shoes for about 2 years and I’m not sure if this is occurring due to poor workmanship, an accidental stub of my toe, constant washing, and sun drying or just pure wear and tear.
I suspect the washing might have got to do with it so I would recommend using socks to reduce the number of times you wash the shoes.
The rest of the shoe still looks fine so I doubt there are major durability issues with the KSO EVO.
I love my Vibram KSO EVO
I honestly cannot see myself running in any other shoe after this. If and when my shoe breaks down, I am off to buy another pair of Vibram. No other shoe can replicate the tactile feel of every step you make.
The girlfriend has been bugging me to buy a more “traditional” pair of shoes to avoid injuries (like stepping on a pebble during my 10k race) and I relented, buying the new Nike Epic React. The Nike is extremely bouncy, plush and soft and I really hope it improves my timing for my next 10k as per the theory above about speed.
However, I find myself slipping back into the Vibram time and time again. The Nikes of this world just cannot match up to the tactile, primal and thrilling nature of barefoot running.
Good to know
- The Vibram FiveFingers KSO EVO is an all-encompassing pair of shoes that are actually shaped like actual feet. Each toe even gets to be wrapped entirely by its fabrics and systems. Made from durable components, this running shoe ensures the comfort and safety of its wearer, keeping the performance as lightweight and natural as possible without sacrificing quality protection and efficacy.
- The upper unit of this running shoe uses durable polyester to ensure that it stays intact, even after many uses. It is not stiff in form, so it allows the foot to be as flexible as it is able. The inner lining features a soft mesh that’s not irritating to the skin. A speed lacing system permits fast adjustment to the fit, therefore keeping the coverage easy to manipulate.
- The Vibram FiveFingers KSO EVO utilizes individual toe slots, which change its façade to actually look like the shape of the human foot. The purposes of this design is to enhance the natural dexterity and versatility of the foot’s movements, enabling the toes to splay naturally and let the shoe adapt to the runner’s own biomechanics.
- The sole unit uses 2mm EVA, which isn’t much compared to the usual thickness of running shoes’ mid-soles, but it’s meant to be that way because it aims to deliver a barefoot-like running experience on all types of terrain.
- The outsole uses a high quality compound that is created to withstand abrasion or wear. It is able to hold onto a variety of surfaces with ease, making sure that the running experience of its wearer isn’t limited or restricted to just flat surfaces. It can even handle trail adventures.
The Vibram FiveFingers KSO EVO is true to its size. The sizing scheme that is used for this model follows the regular measurements when it comes to length. Its width is medium, so it allows those with medium sized feet to acclimate well to it when wearing it. Its semi-curved shape follows the natural curvature of the human foot.
The Vibram XS Trek is a rubber material that is of high quality make. The durability of this section is reliable; it doesn’t easily wear off or lose its efficacy, even after many uses. Traction over the surfaces is very much afforded to the runner. This outsole material is also utilized in some Vibram FiveFingers running shoes.
The platform of the Vibram FiveFingers KSO EVO is very flexible. It allows the foot to move naturally through the gait cycle, making sure that the focus is given to the preference of the wearer, in terms of performance.
A 2mm Ethylene vinyl acetate foam is used as the underfoot cushioning system of this foot-shaped shoe. It is comfortable and it provides mild comfort that’ll make each ground contact easier and smoother.
The Drilex® nylon covers the EVA foam. It features anti-microbial and anti-moisture capabilities, thus keeping the interior as clean and healthy as possible for the foot.
Durable polyester makes up the main upper fabric of the FiveFingers KSO EVO. It covers the foot well, hugging it snugly and securely. It even allows air to enter the shoe in order keep the foot cool and dry.
The lining has polyester mesh, which is soft and smooth. The runner can even wear this without socks, as it doesn’t make the coverage feel irritating.
A speed lacing system makes it easier for runners to adjust the fit. Only one tug from the laces and the shoe will be able to feel adequately tight or loose. No knots are needed for this.
How KSO EVO compares
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