To use this bikini bottom, simply put it on like you would any other swimsuit. It's designed to fit true to size, so pick the size you usually wear. When you're out in the sun enjoying the water, remember to re - apply sunscreen on the areas not covered by the bikini. After use, rinse it with fresh water to get rid of salt, sand, or chlorine. Don't wring it out too hard as it might damage the fabric. Hang it to dry in a shaded area. Avoid using harsh detergents when washing it; instead, use a mild soap. This will help keep the satin fabric looking great and maintain its elasticity for a long time.