The Carhartt Buffalo Cap features cotton and polyester construction, an adjustable back closure for a secure fit, and??Coolmax sweatband in the ??wicks moisture to keep sweat out of your eyes. 100% cotton duck. Mesh back: 100% polyester. Coolmax sweatband wicks moisture. Adjustable strap with a plastic back closure. One Size Fits Most. Spot clean. Imported. 889192434158 27052900156 100286