Stretch Nylon Cap Stretch Nylon Series is 30 denier composed of 90% Nylon and 10% Polyurethane.Made by stretchy fabric and it's very active.The surface is coated with DWR, waterproof.Over time, the water repellency will decrease.It's basically activity-focused, thats breathable. The cap is made of stretch nylon fabric and is a good product for outdoor activities and daily wear.The mesh lining provides comfort, and the inner Coolmax band absorbs sweat and dries quickly on the forehead.The back is a webbing adjustment type, so you can easily adjust the size. Material : Nylon 90% Polyurethane 10% / Polyester 100% (Mesh Lining)Weight: 49.8 gParts : YKK ZippersMade in Korea * After sweating a lot to minimize discoloration of the hat due to sweatWe recommend partial washing or hand washing using mild detergent.* Please do not use the dryer.* Dry naturally in a shaded and well-ventilated place.