The Mammut Stoney HS Jacket Men is a three-layer shell designed to keep you protected from wind and rain during outdoor activities. Its focus is on reliable weather resistance without weighing you down, making it suitable for hiking, trekking, or everyday wet-weather use.
Made from 100% polyamide and equipped with Mammut DRYtechnology™, this jacket sheds moisture from the outside while allowing internal humidity to escape. The three-layer laminate offers enhanced durability against abrasion, and at around 870 grams it balances sturdy protection with packability, so it won’t add unnecessary bulk to your gear.
The breathability rating of 10,000 g/m²/24 h means the fabric lets 10 000 grams of water vapor pass through each square metre over 24 hours, helping to reduce internal clamminess during activity. In a three-layer construction, the waterproof membrane is bonded between outer shell and lining, improving tear resistance and preventing the jacket from becoming heavy when wet.