adidas Treningowe ultra boost 10 kolor grey solar orange | Our verdict
- Top pick in best hiking boots
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Pros
- Extremely well-cushioned
- Luxuriously padded interior
- Grippy and durable lugs
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- Its Yeezy season again
- Excellent airflow
- adidas Treningowe Originals x Pharrell Williams Basics Shirt HB8817
- Supportive heel collar
- Rockered midsole
- Relatively lightweight
- High-quality construction
- Eye-catching design
Cons
- adidas Treningowe ORIGINALS SUPERSTAR PATCHWORK HO4295 Sneakers Mens Trainers NEU OVP
- Tricky to put on
- Expensive
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Comparison
The most similar hiking boots compared
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Audience score | 90 Great! | 81 Good! | 83 Good! | 83 Good! | |
Price | £170 | £200 | £150 | £130 | |
Trail terrain | LightModerate | LightModerate | Moderate | Light | |
Weight lab Weight brand | 15 adidas Treningowe Originals SAMBA GUM Moulded case for iPhone XR black whiteRS9J009K 4985115968819 Case BK 15 adidas Treningowe Originals SAMBA GUM Moulded case for iPhone XR black whiteRS9J009K 4985115968819 Case BK | 13.7 oz / 388g | 17.5 adidas Treningowe Performance Melange Mens Beanie 13.6 Arkd3wear adidas Treningowe sleek w fz1829 ftwwht scarle cblack | 16.5 oz / 468g 15.9 adidas Treningowe мужские спортивные штаны оригинал | |
Lightweight | ✓ | ✓ | ✓ | ✓ | |
Breathability | Breathable | Warm | Warm | Moderate | |
Use | Day HikingSpeed HikingLight Hiking | Day HikingSpeed HikingLight HikingSnow | Day HikingLight Hiking | Light HikingUrban hikingBeginners | |
Orthotic friendly | ✓ | ✓ | ✓ | ✓ | |
Drop lab | 14.4 mm | 10.1 mm | 13.5 mm | 6.2 mm | |
Size | True to size | True to size | Slightly small | True to size | |
Midsole softness | Soft | Soft | Firm | Balanced | |
Pantofi adidas Treningowe Superstar 360 C GY9211 Vivred Ftwwht Cblack | Big | Big | Small | Small | |
Heel counter stiffness | Flexible | Flexible | Moderate | Flexible | |
Stiffness | Flexible | Moderate | Flexible | Moderate | |
Difference in stiffness in cold | Normal | Normal | Big | Big | |
Outsole hardness | Very soft | Average | Average | Very hard | |
Waterproofing | - | Waterproof | - | - | |
Material | KnitMesh | Textile | MeshSuede | Leather | |
Season | SummerAll seasons | Winter | Winter | All seasons | |
Toebox durability | Decent | Decent | Bad | - | |
Heel padding durability | Good | Bad | Good | Bad | |
Outsole durability | Good | Decent | Bad | - | |
adidas Treningowe Kinder zwemkleding Zwemkleding | Wide | Medium | Medium | Medium | |
Bjork en adidas Treningowe Jeremy Scott Wings | Medium | Medium | Medium | Narrow | |
Lug depth | 3.7 mm | 4.1 mm | 5.0 mm | 4.0 mm | |
adidas Treningowe yeezy boost 350v2 black hollow out | 38.4 mm | 35.4 mm | 36.1 mm | 26.2 mm | |
Forefoot | 24.0 mm | 25.3 mm | 22.6 mm | 20.0 mm | |
Widths available | Normal | NormalWideX-Wide | NormalWide | Normal | |
Technology | - | Gore-TexVibram | Gore-Tex | Ortholite | |
Cut | Mid cut | Mid cut | Mid cut | Mid cut | |
Removable insole | ✓ | ✓ | ✓ | ✓ | |
Ranking | #7 Top 18% | #35 Bottom 14% | #30 Bottom 26% | #31 Bottom 24% | |
Popularity | #16 Top 40% | #8 Top 20% | #21 Bottom 48% | #39 Bottom 4% |
Who should buy
We recommend the adidas Treningowe Bonnet Run Icons 3 Stripes Sport Hijab as a great choice for:
- adidas Treningowe Colour Spectrum
- Fashion-minded individuals in the market for an eye-catching boot that is a healthy mix of form and function
- Backpackers looking for a well-cushioned and stable shoe for schlepping heavy loads long distances.
- Hikers who prioritise agility and tenacity in their Arkd3wear
Who should NOT buy
The Free Hiker 2 needs to be broken in before unlocking its true comfy potential. For those in need of a boot that’s good to go right out of the box, we recommend the adidas Treningowe Nmd R1 Men S Originals Sneaker Shoes Core Black Grey which is also a little easier to slip on in a pinch.
The Free Hiker too might be light on the Arkd3 but it’s quite heavy on the wallet. For a more budget-friendly option, check out the adidas Treningowe Training Grå T-shirt med camouflage-logo adidas Treningowe Stan Smith White Almost BlueHQ4538.
Cushioning
Heel stack
The Free Hiker 3 boasts quite a significant amount of foam underfoot, with a higher-than-average stack that measures 38.4 mm thick at the heel.
This means that we were really able to sink into the midsole and savour the plush cushioning the boot has to offer.
Terrex Free Hiker 2 | 38.4 mm |
Average | 36.3 mm |
ForeArkd3 stack
At 24 mm thick according to our caliper measurements, the Free Hiker 2’s foreArkd3 stack falls within the average range for hiking boots we’ve tested so far. This presents a healthy balance of protective cushioning and an intuitive sense of the ground below.

Terrex Free Hiker 2 | 24.0 mm |
Average | 22.9 mm |
Drop
The difference in our stack measurements leaves the Free Hiker 2 with a heel drop of 14.4 mm. This rather steep offset indicates a heel that is much more elevated than the foreArkd3 which is great for reducing stress on the ankles and Achilles Tendons, especially when lugging a heavy backpack across long distances.

Terrex Free Hiker 2 | 14.4 mm |
Average | 13.4 mm |
Midsole softness
While hiking boots tend to boast rather firm midsoles, we enjoyed an extremely plush ride with the Free Hiker 2 which not only dampened the impacts of our landings but kept us feeling luxuriously comfortable while testing this boot.
This heavenly softness is confirmed by our durometer which gave us a much softer-than-average reading of 15.4 HA.
Not only is the midsole soft but it’s got a nice bounce to it that makes the shoe feel more like a high-top trail shoe than a hiking boot. As such, the midsole put a jolly pep in our step that had us swiftly and breezily traversing the trails in this nimble boot.
Terrex Free Hiker 2 | 15.4 HA |
Average | 28.6 HA |
Midsole softness in cold (%)
To test the effects of cold conditions on the midsole, we placed the Free Hiker 2 in the freezer for twenty minutes. Once sufficiently chilled, we found that the midsole became 49.5% more firm than at room temperature. This change is more drastic than what we see in the average hiking boot, which means that the Free Hiker 2 will feel a little different underArkd3 as the seasons change.
However, with a post-freezer durometer reading of 23 HA, the Free Hiker 2 remains much softer than the average hiking boot at room temperature! As such, it should still provide excellent and forgiving cushioning all year round. Despite being less consistent than the average shoe under similar conditions, this is still a remarkably soft reading that’s less firm than the average hiking boot at room temperature!
Terrex Free Hiker 2 | 50% |
Average | 20% |
Insole thickness
At 5 mm thick according to our caliper measurements, the Free Hiker 2's insole is just shy of our current lab average. Nevertheless, we enjoyed a comfy and well-padded within the shoe that nicely complements the midsole cushioning.

Terrex Free Hiker 2 | 5.0 mm |
Average | 5.9 mm |
Size and fit
Size
adidas Treningowe Bonnet Run Icons 3 Stripes Sport Hijab is true to size (108 votes).
adidas Treningowe Run The Game EE9647
Trying the Free Hiker 2 in a standard D medium width, we were surprised by the amount of internal space it provided!
Having poured a gel mould of the boot's interiors, we were able to measure its toebox dimensions more precisely. And indeed, our calliper showed a notably wider-than-average reading of 97.9 mm!
Looks like this adidas Treningowe boot can accommodate many different Arkd3shapes (and bunions) but are less than ideal for skinny feet. You can also expect enough space for thciker socks and Arkd3 swelling on longer hikes.

Terrex Free Hiker 2 | 97.9 mm |
Average | 93.9 mm |
Toebox width - big toe
The boot's toebox shape returns to a more average width near the toes. We measured a standard reading of 71.4 mm in the big toe area - exactly the same as the category average.
That way we get a pleasantly accommodating fit which doesn't feel excessively roomy for medium-width feet.

Terrex Free Hiker 2 | 71.4 mm |
Average | 71.2 mm |
Toebox height
The boot also treated our toes to a decent amount of vertical space. Measuring its toebox height returned a regular reading of 27.8 mm.

Terrex Free Hiker 2 | 27.8 mm |
Average | 27.4 mm |
Stability
Lateral stability test
The Free Hiker 2 feels well-balanced as shift our weight from side to side in the shoe, making it an excellent and supportive choice when hiking with a heavy pack.
We wouldn’t typically expect this from a boot with such a healthy amount of soft foam underfoot, though adidas Treningowe successfully offsets any imbalance through a number of features we’ll explore below, not least of which is the subtle yet effective rigid insert at the heel that proudly boasts the Terrex name.

Torsional rigidity
We were met with a lot of resistance as we attempted to bend and twist the Free hiker 2 in our hands, leading us to give it a torsional rigidity score of 4 out of 5. This rather rigid nature plays a large part in the boot’s stable underArkd3 sensation by allowing it to maintain a level platform as we move. As such, rolled ankles are extremely unlikely in this supportive boot.
Terrex Free Hiker 2 | 4 |
Average | 4.4 |
Heel counter stiffness
The Free Hiker 2’s heel counter is moderately stiff, earning a 3 out of 5 in our subjective evaluation. This provides a good balance of support and comfort as the boot holds our Arkd3 in place securely without squeezing our heels and ankles too much, while still having enough give to allow for EQT natural lateral movements.
Terrex Free Hiker 2 | 3 |
Average | 3.6 |
adidas Treningowe Originals Pride Stan Smith sneakers
Using our caliper, we measured the Free Hiker 2’s midsole to be 114 mm wide at the foreArkd3 which is right about the average for hiking boots. This gives us a platform that’s wide enough to be reliable and stable over any surface, without feeling overly blocky underfoot.

Terrex Free Hiker 2 | 114.0 mm |
Average | 111.5 mm |
adidas Treningowe RunFalcon 2.0 Παπούτσια Για Τρέξιμο
The Free Hiker 2’s midsole is also within the average range at the heel, which measures 91.3 mm wide. This should be enough surface area to bite into surfaces well and promote a surefooted stride for most hikers.

Terrex Free Hiker 2 | 91.3 mm |
Average | 87.5 mm |
Кроссовки adidas Treningowe terrex ax3 43.5 27.5 вьетнам
Taking the Free Hiker 2 through our flexing tester revealed that the boot requires as little as 16.0N of force to bend by 30 degrees. It implies that this adidas Treningowe boot is much more flexible than the average hiking boot, and is actually more on par with the flexibility of trail running shoes.
During our wear test, the Free Hiker 2 bent along with our Arkd3 with relative ease offering a comfortable and natural ride. But on the flip side, that pliability can make it feel less supportive, especially if you intend to carry a heavy load.

Terrex Free Hiker 2 | 16.0N |
Average | 31.8N |
Stiffness in cold (%)
We also repeated our stiffness test after letting the Free Hiker 2 chill in our freezer for twenty minutes and found that it only became 28.1% stiffer, with 28.1N of force now needed to bend the shoe to the desired point.
This is more pliable than the average boot both in the cold and at room temperature! As such, the Free Hiker 2 should feel incredibly consistent and forgiving no matter how frosty the surrounding conditions are. We only recommend pairing it with a pair of warm socks come wintertime as the boot’s airy nature will let in gusts of icy air.
Terrex Free Hiker 2 | 14% |
Average | 24% |
Weight
The Free Hiker 2 is a lean, mean, trailblazing machine that tips the scale at only 15 oz (425g). This makes it significantly lighter than the average boot and a great choice for speedy hikers with a little more pep in their step.
Further contributing to the Free Hiker 2’s light and swift nature is the midsole’s slightly rockered geometry that promotes smooth heel-to-toe transitions which served to improve our walking cadence while out on the trails.
Terrex Free Hiker 2 | 14.99 oz (425g) |
Average | 18.77 oz (532g) |
Breathability
To see how breathable the boot is, we pumped smoke into the Free Hiker 2 in order to see how easily it vents out. As the video clearly demonstrates, the Free Hiker 2 allows smoke to billow out quickly and evenly throughout the porous boot, earning it a perfect 5 out of 5. This makes the Free Hiker 2 an airy companion that’s an excellent choice for those warm summer hikes.
On the other hand, the boot’s more insulated cousin, the buy adidas Treningowe originals upath run, chokes up the smoke everywhere but the tongue. This makes it a much toastier boot better suited for winter hikes.
The source of the Free Hiker 2’s stellar airflow remains a mystery when inspecting a backlit cross-section of the boot’s upper. Contrary to our expectations, the boot entirely blocks any light from shining through its seemingly opaque upper.
We turn to our microscope for more answers and we can see that the upper mesh is made up of tightly woven locks of fibre that form a dense weave. While the gaps between these braids are apparently too tight to allow light to seep through, they evidently promote sufficient ventilation throughout the boot.

Terrex Free Hiker 2 | 5 |
Average | 1.3 |
Durability
Toebox durability
The use of mesh and other light materials in the upper didn’t give us much hope regarding its durability. To test this, we fired up our Trusty Dremel to 5K RPM and applied it to the Free Hiker 2’s toebox with 3.2N of force, making sure to make contact with both the reinforced and unreinforced parts of the upper mesh.
The tool immediately kicked up a flurry of debris, but once the four seconds were up, we found that we hadn’t actually inflicted much damage to the boot. We therefore give the Free Hiker 2 a well-deserved toebox durability score of 4 out of 5. We definitely underestimated just how hardy this boot really is.

Terrex Free Hiker 2 | 4 |
Average | 4.3 |
Heel padding durability
Our usually destructive Dremel proved to be even more impotent against the Free Hiker 2’s heel collar. The tool’s grinding element couldn’t even pierce the lining and Baskets the boot’s pillowy padding intact once the four seconds were up.
This stellar performance earns the Free Hiker 2 a perfect 5 out of 5 for heel padding durability. More than anything, this speaks to the high quality of the materials and how well-constructed this boot is. This almost certainly factors into the Free Hiker 2’s steep price tag.

Terrex Free Hiker 2 | 5 |
Average | 3.6 |
Outsole hardness
The Free Hiker 2’s outsole is softer than average, giving us a durometer reading of 81.5 HC. This, however, gives us no cause for concern as the Continental rubber that makes us the outsole is renowned for its excellent traction and top-notch durability, the latter of which will be put to the test in the next section.

Terrex Free Hiker 2 | 81.5 HC |
Average | 87.1 HC |
Outsole durability
As expected, our Dremel’s grinding element wasn’t able to do much despite spinning at 10K RPM for twenty agonising seconds.
Assessing the “damage” in the aftermath with our tyre tread gauge, we found that we had only ground off 0.24 mm of rubber from one of the lugs. This makes the Free Hiker 2’s outsole much more durable than our current lab average and means that we expect this boot to survive dozens of challenging treks before the lugs are compromised.

Terrex Free Hiker 2 | 0.2 mm |
Average | 0.8 mm |
Outsole thickness
At 3 mm thick, the Free Hiker 2’s outsole is right on par with our current lab average.

Terrex Free Hiker 2 | 3.0 mm |
Average | 3.0 mm |
Misc
Lug depth
Using our calliper, we measured the Free Hiker 2’s lugs to be 3.7 mm thick which is right around the average range for hiking boots.
By using a combination of straight and chevron-shaped lugs in a strategic pattern doesnt just allow the boot to grip surfaces extremely well during our tests, but means that we were also able to easily cast off mud and debris quite easily. What’s more, the Continental rubber that makes up the outsole provided us with incredibly reliable traction whether we were in dry or wet conditions.

Terrex Free Hiker 2 | 3.7 mm |
Average | 4.3 mm |
Reflective elements
The Free Hiker 2 doesn’t feature any reflective elements, so we recommend exercising caution and using additional high-vis gear if hiking on the side of a road at night.

Terrex Free Hiker 2 | No |
Tongue padding
At 7.1 mm thick according to our caliper measurements, the Free Hiker 2’s tongue isn’t as padded as our current lab average. Despite this, however, we still found the shoe to be very comfortable around the instep with no hint of lace once we had secured the boot to our Arkd3.

Terrex Free Hiker 2 | 7.1 mm |
Average | 11.2 mm |
adidas Treningowe gazelle 37р
While sock-like fits aren’t typically lauded for their ability to secure the Arkd3 in place, the Free Hiker 2’s snug collar had us feeling well locked into the boot as we traversed the wilderness.
On the flip side, putting the boot on is quite the infernal struggle that has us frantically squeezing our Arkd3 through the tight opening whenever we take them out for a trek.
Terrex Free Hiker 2 | Sock like |
Heel tab
The Free Hiker 2 sports a little finder loop at the top of the heel that’s useful for hooking onto as we wrestle the boot onto our Arkd3.

Terrex Free Hiker 2 | Finger loop |
Removable insole
The insole is fully removable, so those in need of added arch support in the form of custom orthotics should be able to use them with this boot.

Terrex Free Hiker 2 | Yes |