Mountain Equipment's top alpine hardshell, the Tupilak Jacket is now available in a super-lightweight version called the Tupilak Atmo Jacket. This dedicated Alpine climbing shell uses GORE-TEX Pro 30D fabric to give the light weight and freedom of movement required on the most futuristic terrain. the Super Alpine HC Hood offers serious, helmet compatible, protection. Tupilak Atmo Jacket - Men's Waterproof