. 100% waterproof genuine cotton. 4 1/4" crown. Quick-dry elastic moisture-wicking sweatband. UPF 50 fabric blocks harmful UV rays (Ultraviolet Protection Factor). Black band lacing and tails and black leather stay-put chin cord. 3 1/4" brim. Pinch front creaseHidden inside secure pocketAll-weather brass ventsHose off and line dry.