This Womens One Piece LIFEGUARD® Swimsuit is made with a Nylon and Lycra blend which is the most common material used for professional Lifeguard swimsuits. Thin shoulder straps go around to back to provide comfort and complete support. Front and Back fully Lined with Spandex material. Provides elasticity and comfort for a full-day wear. These are Officially Licensed Lifeguard® Swimsuits. Sizing for Female Swimsuits: Size 22 24 26 28 30 32 34 36 38 40 Bust 22 24 26 28 30 32 34 36 38 40