AKU SUPERALP GTX Boots

On the upper half of the outside, the SUPERALPs are covered in a soft, but tough suede. A protective rubber rand runs all the way around the lower half of the boot’s exterior. This helps protect the boot from rocks and scrapes that would otherwise damage the suede. To ensure a comfortable fit, laces go from toe to ankle with built-in boot hooks that allow you to customize the fit to the terrain underfoot. The Anatomical Fit Last hugs your foot so there’s no movement or slip, helping to eliminate blisters. Underfoot, the Custom Fit IMS 162 footbed uses a double-density PU midsole for support. Medium-stiff nylon and EVA lasting board protect your feet from rough rocks on the trail. I traditionally replace any stock footbed with a custom option such as those from Sidas. But in this case the ones included did an impressive job.

A unique feature of the SUPERALP GTX Boots is their PU exoskeleton design. AKU incorporates this lightweight exoskeleton frame into the boot itself, adding stability and support without adding bulk or weight. This exoskeleton helps stabilize your foot in the boot while providing protection from obstacles on the trail (like rocks and roots) without sacrificing comfort. This exoskeleton concept comes from AKU’s decades of experience designing mountaineering boots. 

The SUPERALP GTX Boots not only fit exceptionally well and provide optimal support and cushion on the trail, but they’re also incredibly light. Think of a mountaineering boot that feels like a hiking boot, durable yet supportive while not as rigid as a true mountaineering boot. They also have generous rocker in the soles so that you aren’t walking like Frankenstein. This is huge after a long day of hiking, as your legs won’t be as tired and your feet will still feel fresh.

Upper -Suede + Air 8000 breathable construction 1.8mm, Protective rubber rand
Midsole - Double Density PU
Lasting board - 6-4mm nylon, die cut EVA (medium)
Footbed - Custom fit IMS 162
Outsole - Vibram Foura rubber sole

Lining - Gore-Tex Performance Comfort waterproof and breathable membrane

Personally, I prefer a hiking boot that performs like a mountaineering boot without feeling like one on the trail. The AKU SUPERALP GTX is that boot. My first time wearing them (right out of the box) was on a full-day hike. After it was all said and done, not a single hot spot or foot issue of any kind presented itself. They’re stiff enough for scrambling over boulder fields, descending scree slopes or boot backing steps up a snow slope, while still being soft and comfy on the inside. The protective rubber rand is generously proportioned, wrapping around the entire lower portion of the boots’ exterior, so there’s no need to tread lightly on rocky terrain; They can take the abuse like a mountaineering boot, while weighing only 700 grams.

I have average feet that are slightly on the wider side, but with a good healthy arch. Not narrow, but not high volume either. The SUPERALP GTX boots kept my heel stationary and I found no need to use my custom footbeds. The interior volume was adequate, and the lacing system kept the upper portion snug over my fore-foot, preventing blisters.

I’ve tested the SUPERALP GTX on several short-day hikes and longer multi-day hikes, on dirt, rock and snow. I simply couldn’t find a downside to them. The high ankle support and rigid exoskeleton was exceptional on all terrain. The Vibram soles provided a strong grip on any surface rain or shine, and the Gore-Tex Lining kept my feet dry and toasty warm. I didn’t experience any excessive moisture build-up on hotter days, and when it rained or I was climbing snow slopes the moisture stayed on the outside where it belongs. However, I did coat the exterior of the SUPERALP GTX Boots with Grangers G-Max Footwear Waterproofer to ensure the exterior suede didn’t wet out.

The AKU SUPERALP GTX Boots are a solid choice in my books. Expensive yes, but worth every penny.