Petit Lem Little Boys' Print Pajama and Socks Top Pant: 100% Cotton; Ribbing: 97% Cotton, 3% Spandex; Socks: 99% Polyester, 1% Spandex Imported Machine Wash Size 2 to 7 Top/pant: 100 percent cotton, ribbing: 97 percent cotton/3 percent spandex; socks: 99 percent polyester/1 percent spandex