We've updated the classic swim trunk with a modern slim fit, while keeping its old-school drawstring waist and adding a mesh lining to keep you comfortable in the water (and when you're lounging poolside or on the beach). Our lightweight stretch swimsuits are crafted from a 100 percent regenerated fiber spun from nylon waste, including discarded fishing nets. It features a water-repellent finish made without fluorocarbons or PFCs. 96% polyamide/4% elastane. Keychain loop at waistband. Mesh lined. Machine wash.