100% polyester with 6 sizes (S/M/L/XL/XXL/XXXL) for your choice. These swim trunks have special polyester fabrics, and they can dry quickly and has UV protection function. Comfortable elastic waist with drawstrings with mesh lining. The inner mesh lining is short, does not feel tight, and has better drainage, so the swimsuit will not swell under water. Equipped with two large-capacity mesh pockets, which can store wallets, keys, phones or other small items. S, M, L, XL, 2XL, 3XL