Soleil BottomStrip Cut Crochet Fabric 90% Nylon, 10% Spandex Adjustable side ties Skimpy Bottom Coverage Low Rise Not sold as a set Model is wearing size small Swimwear fabrics often include nylon, spandex, and lycra which are durable, yet when exposed to harsh sunlight, chlorine, or hot tubs over time can become compromised. To keep your bikini looking fresh all summer, after your fun day in the sun, rinse your swimwear by hand in lukewarm water with a mild soap