These boys' ski mittens have a polyester shell with fleece lining and 3M Thinsulate insulation for breathable comfort and warmth. The mittens feature grippers on the thumb and palm areas to help him maintain a good grip on swings and playground equipment when playing outside. Waterproof polyester shell. Soft fleece lining. Thinsulate insulation for added warmth. Mittens clip together for easy storage. Machine washable. Imported.