The Moab Speed 2 Thermo Mid Waterproof provides warmth and weather protection without the weight, allowing you to enjoy all you winter activities without having to sacrifice comfort. Waterproof suede leather and nylon ripstop upper materials and a waterproof membrane that seals out water and lets the moisture escape. This winter hiker is also equipped with 200 grams of PrimaloftM-. Gold Eco insulation and a SOLARCOREM-. Aerogel insole provides superior underfoot warmth while being extremely flexible and ultra-thin. This boot will keep you comfortable so you can focus on the Good Things around you on your longest winter treks and not your feet.