3M Thinsulate Insulation 40gram Double Tight Knit Beanie Skull Skully Ski Winter Hat Cap New super warm beanie hat. On tag: The original "warmth without the bulk" Thinuslate Insulation traps and holds body heat. Won"t absorb water." Great comfortable fit. Will keep you warm, perfect for outdoor activities such as skiing, snowboarding, or just looking stylish, ideal for Fall and Winter. GREAT Quality! A must have!