LIGHT AND COOL COVERAGE.Stay covered on your runs with the Nike Dri-FIT Aerobill Featherlight Cap. Its ventilated design provides cooling, while an adjustable back strap allows you to choose your fit. This product is made with at least 50% recycled polyester fibers. Nike Aerobill technology integrates proprietary lightweight construction with breathable, sweat-wicking fabric for enhanced comfort and reduced distraction.Perforations throughout the cap help keep you cool.Adjustable back strap lets you customize the fit. Product Details100% polyesterHand washImportedShown: BlackStyle: DC3598-010 NEW Nike Aerobill Hat Black Adult Men's Women's Unisex Adjustable Cap Logo Cap Color Black with Gray LogoSize Adjustable Sporty Athletic Classic Hat Condition is "New with tags".