NWOT Athleta Entwined One Piece Swimsuit in Black, Size Medium. Nylon/Spandex. FIT & SIZING Light Support: Best for A-C Cup WIRELESS SUPPORT provides a comfortable, flattering fit Padded, Removable Medium seat coverage Length 28" Armpit to Armpit 16" PRODUCT DETAILS FOR: Swim, surf, stand-up paddleboard, and all water sports FEEL: H2ECO made with recycled nylon is smooth and sleek with powerful stretch FAVE: Internal shelf bra for light support Stay-put design #566771 FABRIC + CARE Recycled Nylon/Lycra QUICK-DRYING : Dries in a flash RATED UPF 50+ (Excellent Protection) QUICK-DRYING. Dries in a flash Machine wash and line dry. Imported.