The Kombi Storm Cuff II Mittens are designed for maximum warmth out on the mountain Thinsulate insulation holds onto warmth while the mitten style takes advantage of your natural body heat The Storm Cuff Mittens are waterproof to protect you from snow and sleet and theres an soft fleece cuff to keep the gap between your gloves and jacket sleeves warm and cozy Nylon stretch softshell fabric Warm Thinsulate insulation Waterguard trade waterproof fabric keeps hands dry Accu Dri lining prevents sweat buildup Nose wipe on thumb feels soft against skin Adjustable wrist to keep out cold air PU palm for good grip Inner fleece cuff fits under sleeves to keep out cold air