Speedo Halter Tankini Top & Bottom Swimsuit for Women Top: Shell: 80% nylon, 20% spandex. Lining: 100% polyester. Bottom: Shell: 77% nylon, 23% spandex. Lining: 100% polyester. Imported 2 Piece 4-way stretch technology Sewn-in soft cup Flattering fit Speedo logo