Polyester, Nylon, Spandex See size chart Three Piece Tankini Swimsuit: Our swimsuit set includes a tank top, sports bra, and boy shorts. You have the flexibility to wear it as a cute tankini or simply as a single-piece swim bra top matched with shorts. Unique Open-Back Tankini: This swimsuit features a tie-back design. You can leave the back open or tie it at the waist for a different look, providing you with extra comfort and breathability. Swim Bra: Adjustable straps, a cross back, and removable cups provide you with support and ensure your comfort. You can easily adjust the length of the strap and choose whether to remove the pads. Athletic Tankini: Our sporty bathing suit is comfortable, quick-drying, and easy to clean. It is perfect for ladies, teens, girls, juniors, and moms to wear on beaches, for sports, swimming, pool parties, and other occasions.