Mammut has released its 2025 Responsibility Report, highlighting a significant milestone in its sustainability efforts: beginning with the Fall/Winter 2025-2026 collection, all new Mammut apparel, footwear, sleeping bags, harnesses, backpacks, bags, and accessories are manufactured without intentionally added PFAS.
The transition excludes climbing ropes, which currently fall under regulatory exemptions due to their intended use. Mammut reports that 75 percent of its ropes in the Fall/Winter 2025-2026 collection are already produced without intentionally added PFAS. A PFAS-free rope treatment is expected to be implemented across the entire rope lineup by Spring/Summer 2027.
PFAS, or “forever chemicals,” have long been used in outdoor gear to provide water, stain, and grease resistance. However, growing concerns over their potential impacts on human health and wildlife have prompted many manufacturers to seek alternatives. Mammut says it has been developing PFAS-free solutions since 2016 while supporting industry regulations designed to reduce their use.
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Independently Validated
The report also marks another major achievement for the Swiss outdoor brand. It officially validates both its near-term 2030 emissions targets and its long-term goal of reaching net-zero greenhouse gas emissions by 2050.
The validation reinforces the company’s commitment to reducing emissions throughout its global supply chain.
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Sustainability Built Into Design
In addition to removing PFAS, Mammut says it is designing new products with sustainability in mind.
The company’s newest Eiger Extreme Nordwand 6.0 collection is built for serious mountain use while also being made to last longer. The collection includes repair-friendly designs, GORE-TEX PRO ePE membranes, and materials made without intentionally added PFAS. All while delivering the performance climbers and mountaineers expect.
Mammut also introduced a climbing rope made with 100 percent recycled polyamide using a mass balance process. According to the company, internal testing shows the rope produces about 56 percent fewer carbon emissions than ropes made with new polyamide.
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The updated Ophir harness line now contains between 70 and 85 percent recycled materials by total product weight. The harnesses account for about half of Mammut’s total harness sales. The company says the redesign is an important step toward using more recycled materials in climbing gear without sacrificing performance.
Still Work to be Done
“Responsibility is becoming more complex and increasingly data-driven,” Heiko Schäfer, CEO of Mammut Sports Group AG, said. “While we have made meaningful progress, there is still substantial work ahead.”
Mammut notes that it uses the phrase “without intentionally added PFAS” because trace amounts may still be detectable. This is due to contamination in manufacturing equipment, supply chain processes, or the widespread presence of PFAS in the environment.
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