Mammut Alnasca IV Low GTX Men

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Product details

The Alnasca IV Low GTX Men from Mammut is a lightweight and technical hiking shoe, ideal for approaches, hikes, and via ferratas. With its breathable GORE-TEX membrane, it reliably protects against moisture and wind, while the FLEXTRON drive plate ensures stability and precision on technical terrain. The EVA foam midsole provides enhanced cushioning and shock absorption, increasing comfort during longer tours. The Vibram XS TREK EVO outsole with climbing zone guarantees excellent grip, even in wet conditions. Thanks to the optimized lacing, the shoe combines flexibility with additional support, allowing wearers to feel secure in any terrain.

  • Breathable GORE-TEX membrane for weather protection
  • FLEXTRON drive plate for stability and precision
  • EVA midsole for improved cushioning
  • Vibram XS TREK EVO outsole with excellent grip.

Key specifications

Colour
Black, Blue, White
Exact colour description
Black, Blue, Marine, navy-white, White
Target group
Men
Shoe size (EU)
46
Shaft height
Low
Fabric properties
Breathable, Hardwearing, Waterproof
Fastener
Lace fastening

General information

Item number
66636318
Manufacturer
Mammut
Category
Hiking boots
Manufacturer No.
3020-06620-5899-1110
Release date
27.1.2026
Sales rank in Category Hiking boots
1603 of 19267

Colour

Colour
Black, Blue, White
Exact colour description
Black, Blue, Marine, navy-white, White

Material

Material group
Fabric, Leather, Plastic
Main fabric material
Polyester
Upper
Fabric, Leather, Natural rubber, Polyester, Polyurethane, Synthetic
Sole material
EVA, Rubber
Material inner lining
Polyamide, Polyester
Material
EPE, EVA, Fabric, Leather, Natural and synthetic textiles, Polyamide, Polyester, Polyurethane, Rubber, Synthetic

Target group

Target group
Men
Age group
Adults

Shoe properties

Shoe size (EU)
46
Shaft height
Low
Membrane
Gore-Tex
Fabric properties
Breathable, Hardwearing, Waterproof
Shoe sole technology
EVA, Vibram XS Trek Evo
Fastener
Lace fastening

Origin

Country of origin
Vietnam

Sustainability

Manufacturer commitment
Fair wear, SBTi

Product dimensions

Weight
410 g

30-day right of return and free return shipment

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Hiking boots» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 9.Columbia
    0.5 %
  • 9.Keen
    0.5 %
  • 9.Mammut
    0.5 %
  • 9.Merrell
    0.5 %
  • 9.Salomon
    0.5 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Mammut
    0 days
  • 1.Scarpa
    0 days
  • 3.Salewa
    1 day
  • 4.Lowa
    3 days
  • 4.Merrell
    3 days

Return rate

How often is a product of this brand in the «Hiking boots» category returned?

Source: Digitec Galaxus
  • 13.AKU
    25.2 %
  • 14.Salewa
    26.4 %
  • 15.Mammut
    26.8 %
  • 16.Meindl
    27 %
  • 17.Trollkids
    27.2 %
Source: Digitec Galaxus