Baby Buns Girls' 1 Piece Swimsuit with Cover Up Ballerina Ruffle Cover Up: 65% Cotton/35% Polyester; Swimsuit: 85% Polyester/15% Spandex Machine Wash Cover up: 65 percentage cotton, 35 percentage polyester. 1 piece swimsuit : 85 percentage polyester, 15 percentage spandex 1 piece swimsuit w cover up ballerina ruffle