The Union Elastic 18" amphibian shorts from Quiksilver were designed to be worn in and out of the water. These shorts feature an elastic waist, side entry mesh pockets, and a back zip pocket. Made from 92% recycled polyester / 8% elastane. Machine washable. Order Small for waists 30-31, Medium for waists 32-33, Large for waists 34-36, and X-Large for waists 38-40.