
Backside Line
The Terrex Skychaser AX5 Mid GORE-TEX CLIMAWARM+ is the winter model of a brand new entry-level mountaineering boot that adidas Terrex launched earlier this 12 months, the Skychaser AX5. It fills a cool area of interest: a light-weight boot constructed with colder climate in thoughts. Reasonably than emphasizing breathability, the Skychaser focuses on heat and safety, making it a fantastic choice for anybody who runs chilly or hikes in chilly circumstances. After testing, we predict it lives as much as the hype.
The artificial higher is hard – much more inflexible and structured out of the field than we anticipated. It’ll want some break-in time earlier than you are taking it on extra rugged or high-mileage journeys. That stated, the DWR-treated higher, paired with a GORE-TEX membrane and CLIMAWARM+ insulation, did a fantastic job conserving out the weather. Our toes felt toasty on frosty mornings and snowy trails.
The principle draw back is the match. Like most Terrex fashions, the insulated Skychaser AX5 runs small. We discovered it runs a few half measurement brief. Sadly, there aren’t any huge sizes out there. If you happen to require a large match, this boot might not be for you.
How We Examined
We examined the adidas Terrex Skychaser AX5 Mid GORE-TEX CLIMAWARM+ boots primarily throughout early to mid-fall throughout Colorado’s foothills and alpine trails. Fortunate for us, it was an unusually moist and chilly season, which gave us a fantastic alternative to judge these winter boots in chilly, damp, and even snowy circumstances. We put the insulation, traction, and waterproofing to the check in real-world situations – from muddy lowland paths to frost-covered, high-country trails.
Fast Specs
Males’s adidas Terrex Skychaser AX5 Mid GORE-TEX CLIMAWARM+
Finest Chilly-Climate Boot
CleverHiker Score:
4.7/5.0
Worth:
$160
Weight (Pair):
2 lb. 1.4 oz.
Higher Materials:
Ripstop with overlays
Sizing:
common
Professionals
- Light-weight
- Snug
- Strong waterproofing
- Insulated for chilly climate
Cons
- Runs small
- Lengthy break-in interval for an artificial boot

Consolation
The Skychaser AX5 CLIMAWARM+ feels heat, safe, and surprisingly plush as soon as damaged in. Out of the field, we discovered the higher, particularly the ripstop portion, to be fairly stiff. It softened up properly over time, nevertheless it took about 20 miles earlier than the boot actually felt dialed in.
The inside is lined with Adidas’ CLIMAWARM+ insulation, which provides noticeable heat with out making the boot really feel cumbersome or overbuilt. We examined these boots on chilly fall mornings and snowy alpine trails in Colorado. They impressed us by conserving out the chilly and moisture. That stated, the boots can overheat in milder circumstances – they’re made for winter, not spring, summer season, or fall.
Whereas initially inflexible, the supportive construction paid off throughout lengthy path days. The midsole is well-cushioned and decently responsive, providing strong consolation on high-mileage hikes with out feeling overly mushy. The boot hugs the foot securely, and the GORE-TEX liner saved our toes dry by means of snow, rain, and muddy trails. We advocate giving them a number of miles to interrupt in earlier than committing to a multi-day backpacking journey, particularly should you’re susceptible to scorching spots.
Match will likely be a limiting issue for some. Like most adidas Terrex fashions, the Skychaser AX5 CLIMAWARM+ runs small with a comparatively slim match. We advocate sizing up not less than half a measurement, notably should you’re between sizes or put on heavier socks in colder climate.

Ankle Help
The Skychaser AX5 CLIMAWARM+ provides strong however not distinctive ankle help for a light-weight mountaineering boot. Like most fashions on this class, it doesn’t have the construction or rigidity of a standard leather-based backpacking boot, nevertheless it nonetheless gives an honest stage of help the place it counts. We’d name it average: sufficient to encourage confidence on combined terrain, however not so stiff that it limits agility.
We wore these boots on uneven alpine trails in Colorado, usually with a pack, and located them supportive sufficient to assist stabilize the ankle throughout sidehill journey, delicate scrambling, and technical descents. The cuff is versatile however hugs the ankle tightly and offers it a dialed-in really feel.
For fast-moving hikers and backpackers sticking to established trails or venturing into average off-trail terrain, the ankle help right here ought to be adequate. However should you’re susceptible to rolled ankles or carrying a heavy load throughout rugged alpine environments, you may wish to contemplate one thing with a taller and stiff cuff.

Weight
It’s not the lightest boots in our lineup, however the Skychaser AX5 Mid has a powerful weight-to-warmth ratio for cold-weather use. In accordance with adidas, these boots weigh 16.8 ounces per shoe (roughly 2.1 kilos per pair) for a males’s US measurement 9. Our measurement 13 check pair weighed in at 2 kilos 10 ounces per pair.
They’re on the heavier facet in comparison with the opposite mountaineering boots on our listing.
That stated, direct comparisons with true three-season boots just like the Salomon X Extremely 5 Mid GTX or the Oboz Katabatic LT Mid GTX aren’t solely apples-to-apples. The Skychaser is constructed with added insulation for winter-like circumstances – which contributes to the load. Regardless of these cold-weather options, the insulated Skychaser AX5 nonetheless manages to really feel mild and agile underfoot – which is a standout characteristic.
For hikers in search of a winter-ready boot that doesn’t really feel clunky, the Skychaser AX5 CLIMAWARM+ is an efficient selection. It’s heavier than some mid-height hikers however considerably lighter than full-on winter boots.

Traction
The Skychaser AX5 CLIMAWARM+ provides reliable traction general, nevertheless it does have a number of quirks. We discovered it to be confidence-inspiring on dry trails, rocky alpine terrain, and hard-packed snow. On basic Colorado hikes with a mixture of free grime, gravel, and granite, the boot held its floor very well – no slipping or second-guessing – even when shifting shortly.
Issues obtained a bit extra hit-or-miss in moist circumstances. On damp trails and muddy switchbacks, the outsole gripped reliably, and we had no hassle sustaining footing by means of moist grass and duff. It even held up effectively on slick granite throughout a few wet hikes. However as quickly as we hit moist lichen or moss-covered rocks, traction dropped off. The identical goes for moist wooden—footbridges, roots, and boardwalks have been noticeably slick.
That stated, these boots are wonderful on snow. We examined them in early-season circumstances and have been impressed by how effectively they dealt with each untracked and packed trails.

Climate Resistance
The Skychaser AX5 CLIMAWARM+ Mid is constructed to maintain the weather out, and it does a powerful job. Between the GORE-TEX waterproof liner and the CLIMAWARM+ insulation, this boot is clearly designed with chilly and moist circumstances in thoughts.
We examined it throughout an unseasonably moist and chilly fall in Colorado and made some extent to hike instantly into the rain and snow to see the way it carried out. We have been genuinely impressed with how effectively the waterproofing held up over time. Gentle snow and moist path circumstances posed no problem. Even after a number of hours of mountaineering in constant rain, our toes stayed dry. In reality, these boots outperformed our expectations in each mild snow and puddle-ridden terrain.
That stated, we did discover one weak level: after extended publicity to rain, the material just under the ankle began to point out indicators of soaking by means of. Moisture didn’t instantly breach the waterproof liner, however the outer materials started to really feel saturated.
Nonetheless, for winter path use, the Skychaser AX5 CLIMAWARM+ provides wonderful safety. It’s one of many better-performing waterproof light-weight boots we’ve examined for chilly, moist circumstances. Simply remember that in prolonged heavy rain, particularly should you’re on the transfer for a number of days, some saturation across the ankle collar might ultimately meet up with you.

Sturdiness
Though the Skychaser AX5 Mid GORE-TEX CLIMAWARM+ remains to be comparatively new, our early testing reveals promising indicators for long-term sturdiness. With a number of hundred miles already on our check pair, we haven’t encountered any main points—no delamination, no blown seams, and no important put on in high-stress areas.
The ripstop artificial higher feels powerful and abrasion-resistant, and we like that there isn’t loads of uncovered stitching to fret about fraying. Bolstered overlays across the toe and heel additionally assist defend towards scuffs and path abuse.
That stated, it’s nonetheless too early to make a definitive name on long-term efficiency. We’ll proceed testing by means of the winter and past, particularly to see how the higher materials fares at flex factors and past. However thus far, the construct high quality appears strong.

Do you have to purchase the adidas Terrex Skychaser AX5 Mid GORE-TEX CLIMAWARM+ boot?
If you happen to’re after a cold-weather mountaineering boot that doesn’t really feel like a heavy-duty clunker, the adidas Terrex Skychaser AX5 Mid GTX CLIMAWARM+ is certainly value trying out. It’s hotter than your common three-season boot however nonetheless feels nimble and lightweight in your toes. We actually favored the combo of strong insulation, waterproofing, and sure-footed traction. It dealt with frosty mornings, mild snow, and damp trails like a champ.
That stated, it’s not a quiver killer. If you happen to’re hauling heavy masses, heading deep into the alpine, or want a roomier match, you’ll in all probability need one thing stiffer or extra spacious. And, after all, it is a poor selection for summer season and fair-weather hikers.
General, although, the winter model of the Skychaser AX5 provides loads of efficiency for the load. You get legit climate safety, good construction, and luxury in a bundle that’s surprisingly smooth for a winter boot. For chilly hikes, snow-dusted trails, or anybody who tends to get chilly toes, it is a nice choice.

What different mountaineering boots ought to You contemplate?
If you happen to’re in search of non-insulated mountaineering choices, please take a look at our information to the most effective mountaineering boots for extra choices.
Salomon X Extremely 5 Mid GTX Evaluation: That is the pure sibling to the Katabatic. You’ll get an analogous mild, fast-moving really feel, however the X Extremely 5 provides slightly extra construction and help. In order for you one thing that’s nonetheless nimble however a bit extra locked in for steeper terrain, it is a strong step.
HOKA Anacapa 2 Mid GTX Evaluation: Just like the X Extremely 5, these boots are light-weight with a slim match and a responsive really feel. But when consolation is high precedence, the Anacapa 2s are the winner with their forgiving foam soles and superior traction. They provide a versatile, nimble expertise that’s good for hikers who need pace over harsh climate resistance and sturdiness, making them preferrred for average circumstances.
KEEN Hightrail Mid WP Evaluation: For many who need extra ruggedness and a bit extra room, the KEEN Excessive Path Mid WP delivers. It trades some lightness for sturdiness and toe safety, and the WP (waterproof) mannequin provides confidence when trails get moist or sloppy.

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