Wool Blend Flat Visor Pro Style Snapback Cap - Black 100% Acrylic Made of 15% wool and 85% acrylic. One size fits most with adjustable plastic snap closure, fitting up to XL size. Crown measures 4 inches deep, 6 panels, constructed, high profile. Bill measures 2 3/4 inches long, flat bill, same color under bill. Thick, soft and light material.