PEDS Big Boys' Growing Half Cushion Low Cut Socks (Pack of 4) 82% Cotton, 13% Nylon, 3% Spandex, 2% Polyester Imported Machine Wash 2 sizes in 1 sock Low 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