The Patagonia Men's Wavefarer Fluke Boardshorts are made of a recyclable, quick-drying lightweight durable nylon with a DWR finish. The Deluge DWR finish has like-new repellency after years of extensive use. They feature a flat-lying fly with a single rubber button and ladder lock and drawstring closure. A 3-piece, Self-Lined waistband that contours to the hip provides you with ultimate comfort and a great fit, while a forward inseam at crotch eliminates chafing.