PROTEC Original Pro-Tec Classic Skate Helmet Liner Kit, Small Small size replacement liner kit for Pro-Tec Classic Certified Skate Helmet Plush terrycloth fabric covering wicks away sweat and keeps the wearer cool Hook and loop fasteners easily adhere to the EPS liner Machine washable for convenient care and maintenance Small size helmet liner designed to fit heads 21.3-22.0 inches (54-56cm)