Columbia Lightning Lift Boys Jacket Size 4 Product details Fabric type100% Nylon; 100% Polyester Care Machine Wash WATERPROOF PLAY: Made from waterproof Nylon Hydra Cloth and lined with a comfortable taffeta, this jacket is a tried-and-true essential for sleds, snowmen, and snowballs. WARM SNOW JACKET: Durable and warm, this jacket is insulated with 240 grams of naturally breathable and quick-drying polyester.