Men's Corduroy Warmer Flap Cap - Black W28S54D 100-percent-cotton Made of 100% cotton. 58 CM and 60 CM are available. Crown measures 4 inches deep, 6 panels with cotton, unconstructed, lined inside. Ear flap measures 2 1/2 - 3 inches long. Bill measures 3 inches long, pre curved, hard bill.