Mammut Alnasca Low GTX review
The Corescore is a score from 0-100 that summarizes opinions from users and experts. Below shows the distribution of scores for all approach shoes.
This shoe has a 8% penalty on its expert reviews because it has fewer than 5 reviews. This is to avoid that shoes with few reviews unjustly receives high scores.
Learn moreVerdict from 1 expert & 100+ users
Pros
- Excellent grip performance
- Top-grade finish
- Delivers confidence-inspiring stability
- Incredible waterproofing
- Excellent level of comfort
- Super-tough construction
Cons
- Too stiff
- Heavy
- Causes blisters

77% say it's true to size.
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Who should buy the Mammut Alnasca Low GTX
The Alnasca Low GTX is an astonishing piece of Mammut gear—one that looks as good as it performs. It is a solid option if you:
- Prefer an approach shoe that is built primarily for hikers-slash-climbers who wish to have a combination of lightness and precision in their step.
- Prefer an approach shoe that promises lasting comfort, ideal for extended approach trips.
- Prefer an approach shoe that ensures the ankle remains as locked in as possible.
Provides slip and skid resistance
The Alnasca Low GTX’s provision of slip and skid resistance comes from its Michelin Rock Tech outsole. It offers multi-directional traction with its low-profile lugs.
Excellent toe gripping performance
Mammut designers gave it a treaded climbing zone to grant hikers added grip when toeing over boulder-type surfaces. They also furnished it with a heel brake for extra descent control.
Provides stability and cushy underfoot
With its Dual-Tech midsole, this approach-centric shoe from Mammut gets to supply users with enough stability and cushioning underfoot. It has a dual-density construction, which delivers zonal comfort, especially during transitions. The rear region of this cushy component comes with a heel stabilizer made of TPU (thermoplastic polyurethane).
Supportive and comfortable footbed
Rounding out all things midsole in the Alnasca Low GTX is its anatomically shaped insole. Aside from added cushioning, this subcomponent also grants additional support.
Waterproof
What wraps the foot in the Alnasca Low GTX is the hiker’s partly textile, partly velours leather upper. Its plush bootie is engineered with Gore-Tex’s Extended Comfort liner, making the shoe capable of fencing out intrusive wet elements while allowing moisture to wick out from the inside.
Abrasion-resistant
A rubber toe cap takes point in this shoe, delivering abrasion protection and extra toeing traction at the same time. The upper’s heel, on the other hand, is furnished with a TPU plating (a.k.a. the 360 Heel Support), which further reinforces the shoe’s rear zone.
Snug fit
Making the Mammut Alnasca Low GTX’s upper come full circle is the shoe’s fit management system. It is made up of combination eyelets, synthetic lace, and the Base Fit technology, which consists of a system of heel-hugging cords.