Baby Buns Girls' 2 Piece Swimsuit with Cover Up Sail Love 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 2 piece swimsuit w cover up sail-love