Igloos Men's Insulated Waterproof Fleece Gloves Shell: 100% 220g Polyester Microfleece/Insert: Waterproof Insert/Insulation: 40 grams of 3M Thinsulate Insulation (65% Olefin/35% Polyester)/Lining: 100% Polyester Brushed Tricot/Palm: Sure grip oval palm and thumb Imported 220g Microfleece Glove Thinsulate Insulation Waterproof Insert