Our verdict

Let's make it clear - the Altra Olympus 6 Hike Mid GTX is not for everyone. But if you specifically look for a zero-drop hiking boot with an extra wide ergonomically shaped toebox, then you are on the right page. We found this Altra boot immensely comfortable for all-day hikes on moderate terrain as well as considerably lighter than its counterparts. But on the flip side, we believe that it is unnecessarily pricier than similar boots and highly recommend exploring other options before purchasing.

Pros

  • Well-cushioned for long hikes
  • True zero-drop design
  • Extra spacious rounded toebox
  • Lightweight for its stack and support
  • Excellent stability for moderate hikes
  • Highly durable upper and outsole
  • Effective waterproofing
  • Generously padded interiors

Cons

  • Gets much firmer and stiffer in cold
  • Frail inner lining
  • Overpriced for its kind

Audience verdict

N/A
Not enough reviews yet

Who should buy

The Olympus 6 Hike Mid GTX has a narrower target audience than most other day hiking boots. But you may be part of it if you are in search of the following:

  • a zero-drop boot which places the heel and the forefoot at one level
  • an unprecedently wide and spacious toebox with an ergonomic shape
  • a max-cushioned chunky boot for high-mileage thru hikes on moderate terrain

Altra Olympus 6 Hike Mid GTX review

Who should NOT buy

If you're not a fan of a zero-drop offset, you may want to consider equally comfortable and cushioned boots with a more traditional 8-9 mm drop:

Both alternatives are cheaper than the Olympus and have a moderate weight.

Another highly cushioned option for less advanced hikes is the New Balance Fresh Foam X Hierro Mid GTX.

Altra Olympus 6 Hike Mid GTX lab test

Cushioning

Heel stack

The midsole of the Olympus 6 Hike Mid GTX appears to be gigantic at first sight. But in reality, our foot sat more inside that platform and not so much on top of it.

When we cut the boot in half and measured its stack height with a calliper, it showed a pretty moderate reading of 31.6 mm. This is lower than the 33 mm stated by Altra and also lower than the average of hiking boots.

But on the bright side, any hiking platform above 30 mm provides sufficient protection from impact and debris during longer hikes so we didn't find that lacking in the Olympus.

Altra Olympus 6 Hike Mid GTX Heel stack
Test results
Olympus 6 Hike Mid GTX 31.6 mm
Average 36.3 mm
Compared to 39 hiking boots
Number of shoes
26.2 mm
Heel stack
46.9 mm

Forefoot stack

What really makes this Altra boot feel max-cushioned is its towering forefoot stack of 31.0 mm.

Even though it is 2 mm away from the promised 33 mm, it is still one of the thickest we've recorded in the lab. Even taller than all the chunky Hoka boots.

Altra Olympus 6 Hike Mid GTX Forefoot stack
Test results
Olympus 6 Hike Mid GTX 31.0 mm
Average 22.9 mm
Compared to 39 hiking boots
Number of shoes
17.0 mm
Forefoot stack
31.0 mm

Drop

Atra stays true to its zero-drop promise which was confirmed by our in-house stack measurements. With just a minor discrepancy of 0.6 mm, we applaud the brand's manufacturing quality and precision!

Zero-drop implies that there is no (0 mm) difference in height in the boot's platform thickness in the heel and in the forefoot. This offset puts the foot flat on the midsole similarly to its natural standing position on a flat surface.

Altra Olympus 6 Hike Mid GTX Drop

But here is the kicker...

Zero-drop (or even low-drop) hiking boots are NOT for everyone. There is a good reason why the average heel-to-toe drop of outdoor boots hovers around 14 mm - you need that heel elevation to take the stress off your feet and Achilles tendons for covering long miles with a heavy backpack.

And if you've never tried a low-drop boot before, you want to take it very slow and decrease the drop very gradually to let your body adapt to the new biomechanics. Try choosing a 5-6 mm drop before you switch to a full-on zero-drop boot like the Olympus 6 Mid.

Test results
Olympus 6 Hike Mid GTX 0.6 mm
Average 13.4 mm
Compared to 39 hiking boots
Number of shoes
0.6 mm
Drop
21.0 mm

Midsole softness

Note: a low durometer measurement equals a soft material, whereas a high measurement means it's firm.

As the name suggests, this Atra boot is built on the basis of the popular Olympus 6 trail running shoe. And to our disappointment, it uses a similar EVA foam which is pretty basic considering the boot's higher-end price.

It is not a bad material per se as it provided the necessary compression to keep us well-cushioned all throughout the hike but the price left us wishing for more.

Altra Olympus 6 Hike Mid GTX Midsole softness

Pressing a Shore A durometer against the foam, we got a higher reading than in the low-cut version. At 27.0 HA, it is notably firmer than the shoe's cushioning (20.0 HA) but still within the "balanced" softness range by our standards.

This goes in line with the brand's description: "Float: Soft, Stable, Balanced." But if you're wondering what a plush hiking boot feels like, check out the New Balance Fresh Foam X Hierro Mid GTX (14.7 HA) which is also based off a running shoe.

Test results
Olympus 6 Hike Mid GTX 27.0 HA
Average 28.1 HA
We use an average of four tests. The photo shows one of those tests.
Compared to 39 hiking boots
Number of shoes
14.7 HA
Midsole softness (soft to firm)
51.6 HA

Midsole softness in cold (%)

Having tested dozens of hiking boots, we couldn't help but notice that softer foams tend to get much firmer in lower temperatures. And the Olympus 6 Mid Hike GTX is no exception.

Exposing the boot to freezing conditions for 20 minutes, our durometer showed a notably higher reading of 35.5 HA which is 32% firmer compared to the room temperature measurement.

In other words, don't expect the Olympus to feel equally soft in the high noon and first thing in the chily morning. It takes some breaking in to return to its original softness.

Altra Olympus 6 Hike Mid GTX Midsole softness in cold (%)
Test results
Olympus 6 Hike Mid GTX 32%
Average 20%
Compared to 39 hiking boots
Number of shoes
4%
Midsole softness in cold
50%

Insole thickness

Good thing that the boot's insole doesn't freeze solid and you can rely on its generous padding for comfort. Our calliper measured its thickness at 5.8 mm in the heel.

Altra Olympus 6 Hike Mid GTX Insole thickness
Test results
Olympus 6 Hike Mid GTX 5.8 mm
Average 6.0 mm
Compared to 39 hiking boots
Number of shoes
3.7 mm
Insole thickness
8.0 mm

Size and fit

Size

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Toebox width - widest part

Now's the time to talk about the elephant in the room - the Original FootShape Fit. The largest of all Altra's fit shapes (Original, Standard, and Slim) it offers tonnes of space for the toes to splay as freely as they desire.

But how spacious are we talking? We created a gel mould to find out.

At 98.8 mm in the widest part of the mould, it is significantly wider than average hiking boot toebox! So if you ever felt like your boots didn't offer enough wiggle room, this could be your option.

Altra Olympus 6 Hike Mid GTX Toebox width - widest part
Test results
Olympus 6 Hike Mid GTX 98.8 mm
Average 94.3 mm
Compared to 6 hiking boots
Number of shoes
92.1 mm
Toebox width - widest part
98.8 mm

Toebox width - big toe

But the boot is wide not only in the metatarsal area, it keeps its wide shape all the way to the front creating a rounded (even square) space for the toes. Our calliper showed a whopping 80.7 mm of width near the big toe!

Altra Olympus 6 Hike Mid GTX Toebox width - big toe

Altra positions this silhouette as most optimal for natural movement and we could certainly feel the benefits of such freedom. However, not everyone is a fan of the added toe space. Hikers with narrower feet or those who prefer a snug climbing-like fit for technical and rocky terrain will not enjoy the excessive or even dead toebox space.

This is one of the reasons why we think it's best to reserve the Altra Olympus 6 Hike Mid GTX for light and moderate terrain.

Altra Olympus 6 Hike Mid GTX fit

Test results
Olympus 6 Hike Mid GTX 80.7 mm
Average 71.8 mm
Compared to 6 hiking boots
Number of shoes
68.9 mm
Toebox width - big toe
80.7 mm

Toebox height

The puzzle wouldn't be complete without an equally generous toebox height. Clocking in at 33.5 mm, the boot's vertical space is simply unprecedented.

Altra Olympus 6 Hike Mid GTX Toebox height
Test results
Olympus 6 Hike Mid GTX 33.5 mm
Average 28.5 mm
Compared to 6 hiking boots
Number of shoes
26.0 mm
Toebox height
33.5 mm

Stability

Lateral stability test

It is important to emphasise that the Olympus 6 Hike Mid GTX is more than just a high-collared trail running shoe because its upper design is a far cry from the low-cut version.

The boot's constructed collar, as Altra calls it, paired well with the wide platform to provide excellent lateral stability and ankle support.

But even though we never felt off-balance in this Altra boot, we found its overall containment better suited for moderate terrain. Complex landscapes call for a much sturdier foothold, in our opinion.

Another important note goes out to hikers with moderate-to-severe overpronation - this Altra boot can exaggerate your condition! Even though it has a stiff and wide platform, the entire boot somehow makes your foot want to lean inwards. Please be mindful of that, the brand tags it as a boot with "neutral" support. 

Torsional rigidity

The base of the Olympus 6 Hike Mid is massively rigid. Despite the absence of shanks or TPU stabilisers, we found it impossibe to twist this Altra boot, rating its torsional stiffness with the highest score - 5/5!

Its raised midsole walls and sturdy nubuck leather create a tonne of resistance thus minimising the risk of foot buckling and ankle rolling.

Test results
Olympus 6 Hike Mid GTX 5
Average 4.4
Compared to 39 hiking boots
Number of shoes
1
Torsional rigidity
5

Heel counter stiffness

Despite its burly appearance, the constructed collar of the Olympus 6 Hike Mid GTX has a lot of give in the rearfoot. Pushing and squeezing it in our manual test, we couldn't rate its stiffness any higher than 3/5.

On one hand, it detracts from the boot's support on the more technical stretches. But on the other hand, it makes it feel much more comfortable on moderate hikes where some ankle mobility is in fact welcome. There is no digging into your Achilles on steep downs, for example.

Test results
Olympus 6 Hike Mid GTX 3
Average 3.6
Compared to 39 hiking boots
Number of shoes
1
Heel counter stiffness
5

Midsole width - forefoot

The chunky midsole dimensions of the Olympus 6 Hike Mid GTX gave us very strong Hoka vibes. And when we measured its width with a calliper, it proved to be very close to that of the Hoka Kaha 2 GTX!

In the widest part of the forefoot, we got an above-average reading of 117.6 mm!

Altra Olympus 6 Hike Mid GTX Midsole width - forefoot
Test results
Olympus 6 Hike Mid GTX 117.6 mm
Average 111.7 mm
Compared to 39 hiking boots
Number of shoes
96.3 mm
Midsole width - forefoot
124.6 mm

Midsole width - heel

It didn't come as a surprise that the heel of this Altra boot also turned out to be on the wide side. With a whopping heel width of 102.2 mm, it is one of the most massive hiking boot platforms we've tested!

A big base like that is perfect for maintaining stability on long hikes with heavy loads! But you plan to hike some obstacle-laden and off-camber trails where precise foot placement is essential, you may want to opt for a narrower platform. 

Altra Olympus 6 Hike Mid GTX Midsole width - heel
Test results
Olympus 6 Hike Mid GTX 102.2 mm
Average 87.6 mm
Compared to 39 hiking boots
Number of shoes
71.7 mm
Midsole width - heel
106.1 mm

Flexibility / Stiffness

You can't expect much flexibility from a high-stack boot with a thick leather upper and a rugged outsole. That's why we weren't surprised at an above-average reading of 47.2N on our force gauge. This Altra boot takes some extra force to bend to a 90-degree angle.

But the good news is that you want a stiffer platform for added support on those long thru hikes.

Test results
Olympus 6 Hike Mid GTX 47.2N
Average 43.4N
We use an average of four tests. The video shows one of those tests.
Compared to 39 hiking boots
Number of shoes
16.6N
Flexibility <> Stiffness
84.7N

Stiffness in cold (%)

And if the air starts to chill, you can expect the Olympus to lose even more of that minimal flexibility it had. After a 20-minute freezer session, the stiffness of this Altra boot increased by 33% and ended up among the most freezing-prone boots on our roster.

Altra Olympus 6 Hike Mid GTX Stiffness in cold (%)
Test results
Olympus 6 Hike Mid GTX 33%
Average 24%
Compared to 39 hiking boots
Number of shoes
3%
Stiffness in cold
71%

Weight

Just as described in its specs, the Altra Olympus 6 Hike Mid GTX turned out to be a nice and light day hiking boot!

Despite its burly appearance, it doesn't feel dragging on foot and showed a very reasonable weight of 16.2 oz (458g) in a men's US sie 9. This is, in fact, even lighter than what's stated in the specs - 18.6 oz (528g) - although Altra doesn't mention what size it was taken from.

Altra Olympus 6 Hike Mid GTX Weight
Test results
Olympus 6 Hike Mid GTX 16.16 oz (458g)
Average 18.70 oz (530g)
Compared to 39 hiking boots
Number of shoes
11.71 oz (332g)
Weight
28.29 oz (802g)

Breathability

If you are in search of a summer-ready boot, the Olympus 6 Hike Mid GTX is NOT it. Its nubuck leather upper and Gore-Tex waterproofing are a much better combo for hikes in cooler spring and fall.

It may seem like the cavities throughout the boot's leather are ventilation pores but our close-up microscope inspection showed otherwise.

Altra Olympus 6 Hike Mid GTX Breathability microscope test

However, there is some degree of in-boot air circulation which helps to wick the sweat away. We found that the entire length of its insole is perforated to aid with that.

Test results
Olympus 6 Hike Mid GTX 1
Average 1.4
Compared to 39 hiking boots
Number of shoes
1
Breathability
5

Waterproofing

The Altra Olympus 6 Hike Mid GTX features the Invisible Fit type of Gore-Tex membrane which bonds directly with the other upper materials which makes it invisible indeed. And yet, it doesn't make it any less effective! This technology prevents moisture from seeping inside the boot at the very stage of contact - be it getting caught in a rain or crossing a shallow creek.

 

Durability

Toebox durability

Altra equipped the Olympus 6 Hike Mid GTX with a sturdy nubuck leather and a large rubber toe rand for added durability and protection from sharp bushes, sticks, and stones.

Drilling the top of its toebox with sandpaper for 12 seconds, we saw some material chipping away but the Dremel didn't get even halfway through the leather! Considering the minor damage (mostly cosmetic), we rated the toebox durability of this Altra boot with a high score of 4/5.

Test results
Olympus 6 Hike Mid GTX 4
Average 4.3
Compared to 35 hiking boots
Number of shoes
1
Toebox durability
5

Heel padding durability

Unfortunately, the inner material of the Olympus 6 Hike Mid GTX showed no wear resistance at all! Our sandpaper drill left a glaring hole in it in mere seconds! We found it unacceptable considering the price point of this boot.

Test results
Olympus 6 Hike Mid GTX 1
Average 3.5
Compared to 35 hiking boots
Number of shoes
1
Heel padding durability
5

Outsole hardness

On a positive note, the durability of its Vibram rubber outsole did not disappoint.

Pressing a Shore C durometer against the compound, we got a fairly high reading of 85.0 HC. An indicator of proper hardness, it is also a contributor to the boot's longevity.

Altra Olympus 6 Hike Mid GTX Outsole hardness
Test results
Olympus 6 Hike Mid GTX 85.0 HC
Average 87.3 HC
We use an average of four tests. The photo shows one of those tests.
Compared to 39 hiking boots
Number of shoes
81.0 HC
Outsole hardness
92.1 HC

Outsole durability

Having driled the boot's Vibram rubber for 18 seconds at 10K RPM speed, we nodded with approval as the dent was barely even noticable! As our tread gauge showed, the damage was as shallow as 0.6 mm - even smaller than the average!

Test results
Olympus 6 Hike Mid GTX 0.6 mm
Average 0.8 mm
Compared to 32 hiking boots
Number of shoes
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

Altra also made the base rubber layer thicker to protect the bottom of the midsole. Clocking in at 3.3 mm, it is even a bit thicker than average. The added material helps to extend the boot's life when lugs start to wear off.

Altra Olympus 6 Hike Mid GTX Outsole thickness
Test results
Olympus 6 Hike Mid GTX 3.3 mm
Average 3.0 mm
Compared to 39 hiking boots
Number of shoes
1.8 mm
Outsole thickness
5.6 mm

Misc

Lug depth

The Vibram Megagrip outsole pattern of this Altra boot features medium-deep lugs of 3.8 mm. As our weartests showed, this treading belongs to light and moderate terrain and is not too aggressive to be worn on hard-packed trails and urban surfaces.

It offers a strong bite on moss-covered logs, shallow dirt, and boulders but we wouldn't trust it on deeper mud and rock-heavy trails.

Altra Olympus 6 Hike Mid GTX Lug depth
Test results
Olympus 6 Hike Mid GTX 3.8 mm
Average 4.4 mm
Compared to 39 hiking boots
Number of shoes
3.0 mm
Lug depth
6.0 mm

Price

In our opinion, the Altra Olympus 6 Hike Mid GTX is overpriced , just like the Olympus 6 running shoe. Sure, the boot has some niche features like zero-drop or an extra roomy toebox but they are not every hiker's cup of tea. What's more, the boot's close competition is much more reasonably priced.

Altra Olympus 6 Hike Mid GTX Price
Test results
Olympus 6 Hike Mid GTX $220
Compared to 41 hiking boots
Number of shoes
£100
Price
£350

Reflective elements

The branding stripe around the boot's heel is made of reflective material. It is not very large but ensures some night-time visibility.

Test results
Olympus 6 Hike Mid GTX Yes

Tongue padding

Altra packed a tonne of padding in the tongue and collar of the Olympus 6 Hike without compromisisng the boot's weight. Measuring its tongue thickness returned a notably thicker-than-average reading of 15.1 mm.

Altra Olympus 6 Hike Mid GTX Tongue padding
Test results
Olympus 6 Hike Mid GTX 15.1 mm
Average 11.1 mm
Compared to 39 hiking boots
Number of shoes
5.9 mm
Tongue padding
15.1 mm

Tongue: gusset type

A fully-integrated tongue of this Altra boot creates a seamless hug around the ankle. It contributes to the locked-in fit as well as enhancing waterproofing.

Altra Olympus 6 Hike Mid GTX Tongue: gusset type
Test results
Olympus 6 Hike Mid GTX Both sides (full)

Heel tab

The boots has two finger loops - one on the tongue and one of the heel collar. Both a large and easy to use for quicker on-and-off.

Altra Olympus 6 Hike Mid GTX Heel tab
Test results
Olympus 6 Hike Mid GTX Finger loop

Removable insole

The insole is not glued and can be easily removed is necessary. However, given its shape and perforated nature, finding a good replacement can be tricky.

Altra Olympus 6 Hike Mid GTX Removable insole
Test results
Olympus 6 Hike Mid GTX Yes