SnowStoppers Kid's Nylon Waterproof Snow Colorful Mittens Nylon Imported Patented SnowStopper Sleeve Fully Waterproof Drypel Liner Thinsulate Insulation They are fully Waterproof and they don't fall off! Outer shell 100% Nylon, Cuff 100% Acrylic, Inner Lining 100% Polyester, Insulation 65% Olefin and 35 % Polyester. Hand wash with warm water, no bleach. Lay flat to dry. X-Small mittens DO NOT have thumbs