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Brand · Switzerland

Mammut

A Swiss alpine equipment brand producing mountaineering-oriented shells alongside ropes and hardware.

Founded 1862Last verified 2026-10-19

Background

Founded in 1862 in Dintikon, Switzerland, as Kaspar Tanner's rope-making business; mountain sports became central from the 1950s.

What to check before buying

Editorial buying guidance, not a brand rating

A mountain shell should work with the equipment you actually wear. Check helmet compatibility, harness access, sleeve reach and pocket position, alongside the documented fabric construction. A technically ambitious specification is less useful if the jacket restricts movement or leaves important adjustments difficult to reach.

For the general method, see how to choose a waterproof jacket and waterproof ratings explained.

Brand facts

Published company information

Country of origin
Switzerland
Founded
1862
Price range
Mid to premium
Jacket families
Alto, Eiger Nordwand
Warranty
International policy: 30 months from purchase (12 months for professional use). US policy: a 2-Year Quality Guarantee. Both exclude wear, accidents and improper use — regional policies, not a contradiction.
Repair programme
Paid repair service for out-of-warranty damage; European price list includes €25 for a jacket patch and €25 for a stitched-and-taped seam (excluding VAT and shipping). Items must be clean; US claims follow a separate process.
Sustainability
Product-level claims include PFC-free DWR treatments, a PFC-free ePE membrane on the Eiger Nordwand Pro, and recycled main materials. These are component-specific statements, not a range-wide zero-PFAS claim.

WaterproofJacket.com assessment

Our editorial view of the brand

Strengths

  • Publishes per-product water columns (e.g. 15,000 mm Alto Light, 20,000 mm Alto Guide)
  • Current proprietary laminate is Mammut DRY Tour, in documented 2.5- and 3-layer versions

Weaknesses

  • Warranty is 30 months internationally and two years in the US — shorter than many rivals' lifetime policies
  • European repair price list does not apply to US claims

Frequently asked questions

Are Alto Light and Alto Guide the same jacket?

No. Mammut lists them as 2.5-layer and 3-layer DRY Tour constructions with published water columns of 15,000 mm and 20,000 mm respectively.

Sources