80% Nylon, 20% Spandex Imported OUR SIZE SUGGESTION:The Swim Skirt fits true to size now, please refer to the size you normally wear. For example:If you are US 4, please order size 4, you will receive the swim skirt Tag US 8 which fit for US 4 (We make the adjustment). Swim skirt features built in swim pants and an elastic waistline for a flattering fit. Ruched front design and flat in back, so it can slim your tummy and flatter feminine curves. High waisted swim skirt for concealing tummy better; Double ruffle hemline. Built-in mesh brief increases comfort and support.