Unisex Separate Swimsuit / Genderless Swimsuit Color: Navy Top: 85% Nylon, 15% Polyurethane Bottoms: 94% Polyester, 6% Polyurethane Built-in inner shorts: 85% Nylon, 15% Polyurethane The top and bottoms are made of different materials. Water-repellent finish Designed for ease of swimming and peace of mind, the top and bottoms can be connected with snap buttons. Also, by threading the waist string of the bottoms through the loop of the top and tying it, the top is less likely to ride up. The design is made to conceal the body's lines.