NWT J. Crew Tie high-rise bikini bottom in Navy Blue Size M Pair with your favorite bikini or tankini top!♥ We re-imagined every single suit in our swim collection using... over 60 percent recycled materials to help keep waste out of oceans and landfills. This one is crafted from a special fabric that incorporates recycled nylon. Plus, its lining is made with a recycled polyester that is crafted from recycled plastic bottles, yarns and fabric scraps. It fits exactly like our new-and-improved high-waisted bikini bottom, with the genius addition of a flattering tie at the waist. (Model wearing black to show fit) 82% recycled nylon/18% elastane. 92% recycled poly/8% elastane lining. Built-in UPF 50 sun protection (recommended by the Skin Cancer Foundation as an effective UV protectant, in addition to SPF). Our swimsuits are machine washable, but we recommend hand washing, as it helps keep the fabric and shape of the suit looking newer, longer.