One-Piece Swimwear: Old Navy Womens Smooth Dri-Fit Surf Swimsuit Super hot & sexy Old Navy swimsuit lets you feel comfortable and look great! Great Fabric: 80% nylon, 20% spandex; Hi-tech material for quick dry and comfortable wear. Padded wireless bra with adjustable tying strings that can be tied on your neck for an elegant look. Fully lined front panel; Backless structure.