Speedo Women's Power Flex Eco Marble Haze Drop Back One Piece Swimsuit 78% Nylon, 22% Spandex Imported Power flex eco fabric is eco-friendly and performance enhancing Offers 4X the compression of standard fabrics and is twice as strong, avoiding sagging and bagging Features spandex which resists deterioration from suntan lotions, skin oils and chlorine, maintaining its shape 5-10 times longer than regular spandex