Old Navy Womens Soft & Smooth Surf Swim Bikini Bottom - Quick Dry Very flattering & high quality dri-fit swim bottom! Shell: 82% nylon 18% spandex; Lining: 100% polyester; Hi-tech material for quick dry and comfortable wear Covered elastic at waist and ties at both sides for custom fit and comfort. Alluring fit; Full lining for comfortable wear High quality fabric and great construction make this an excellent product!