●polyester ●♥Please compare the detail sizes with yours before you buy!!!?Hand wash Cold,Hang or Line Dry♥ ●【Ski Mittens】Water-resistant outer layer resist the penetration of water to some degree but not entirely.However,the waterproof layer added inside the glove greatly enhances the water-resistance.Keep hands dry and warm while playing in the snow,enjoy your skiing,sledding,snowball fight and snowman building.These are perfect kids snow gloves for winter! ●This is the best holiday gift for kids、friends and colleagues, Im sure theyll like it ●Stay warm: these children ski mittens are thick and windproof that they can make your kids hands in a warm state even in the chilly weather, protecting hands from cold wind, considerate tools for children in the winter