Who should buy the Mammut Alnasca Knit Low GTX

The Alnasca Knit Low GTX is a bankable Mammut piece, all thanks to its collection of confidence-inspiring pros. It is a solid option if you:

  • Prefer an approach shoe that is designed to provide a comfortable and secure ride over mountainous terrain in shifting weather conditions.
  • Prefer an approach shoe that delivers surefootedness on a variety of surfaces.
  • Prefer an approach shoe that grants the wearer adequate moisture protection.

Mammut Alnasca Knit Low GTX logo

Excellent surface grip

The Alnasca Knit Low GTX approach shoe is equipped with the Michelin Rock Tech outsole for a multi-directional surface grip. It uses Michelin’s OCX Approach rubber compound. As it comes with a number of low-profile lugs (a.k.a. studs), it is capable of latching on to loose soil with sufficient tenacity.

Mammut Alnasca Knit Low GTX outsole

Provides slip and skid resistance

It features a climbing zone and a moderate heel brake. The former—that treaded front end—provides users with extra slip and skid resistance, particularly on smears. The latter, on the other hand, delivers additional stopping power on descents.

Mammut Alnasca Knit Low GTX outsole 1

Comfortable and stable cushioning

When it comes to underfoot cushioning, wearers have the Alnasca Knit Low GTX’s Dual-Tech midsole to thank. As its name implies, it has a dual-density construction, which promises a blend of comfort and stability over rocky terrain. 

Mammut Alnasca Knit Low GTX midsole

Mammut engineers furnished it with a heel stabilizer made of thermoplastic polyurethane or TPU. They also paired it with an anatomically shaped footbed for added comfort.

Easy to wear

The Mammut Alnasca Knit Low GTX shields the foot from the direct assaults of the terrain with its mostly knit fabric upper. It comes with two pull loops (one at the heel and another at the tongue) for easy on and off.

Mammut Alnasca Knit Low GTX loop

Breathable and waterproof

Its main bootie is imbued with Gore-Tex’s Performance Comfort technology, rendering the shoe adequately breathable and watertight at the same time. Its elastic tongue is also powered by Gore-Tex for increased moisture protection.

Mammut Alnasca Knit Low GTX upper

Provides protection against abrasive hazards

Reinforcing its rear zone is the technology called 360 Heel Support. It is a three-dimensional plating made of TPU. Its presence delivers extra heel support and additional protection against abrasive hazards.

Mammut Alnasca Knit Low GTX heel

Secure lockdown

Its lace-up closure consists of cord-like synthetic lace and combination eyelets. This lockdown system comes with the Base Fit technology, which is a system of cords that can give the heel a tighter hug.

Mammut Alnasca Knit Low GTX laces

Nice to know

-The Alnasca Knit Low GTX has a leather variant in the Mammut Alnasca Low GTX.

Facts / Specs

Weight: Men 380g / Women 330g
Features: Lightweight / Tongue Pull Loop / Heel brake
Technology: Gore-Tex
Material: Knit
Waterproofing: Waterproof
Top: Low

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Teddy Dondanville
Teddy Dondanville

Teddy is a professionally trained Apprentice Rock Guide with the American Mountain Guides Association and a Wilderness First Responder with the National Outdoor Leadership School. Besides guiding outdoor rock climbing, Teddy also has years of experience in route setting and coaching climbing indoors. Through his guiding, route setting, and coaching, Teddy has experimented with climbing shoes for over a decade.