Speedo Women's Stratus Engineered Geoback Racing Suit lycra-blend 77% Antron nylon, 23% lycra spandex Premium quality lycra for superior stretch and longevity. Speedo dominates the competitive suit market with proven performance for over 76 years! Front and back lined. Geoback with fashionable thin straps for more comfortable, secure fit. By Speedo - #1 swim brand worldwide. Look and feel your best as you compete, train for health, have fun, relax! Hand wash cold seperately. Do not bleach. Dry flat. Do not iron. Do not dry clean.