PEDS Growing, Jersey Ankle Socks for Boys, Black and Gray, 4 Pairs 68% Cotton, 17% Nylon, 8% Polyester, 4% Rubber, 3% Spandex Imported Machine Wash 2 sizes in 1 sock Quarter cut Durable socks for all your little guy's activities 4 pair pack Satisfaction guaranteeif you are not completely satisfied with your PEDS product, simply return them to us for replacement