Wool Blend Prostyle Snapback Cap - Black W41S71B 100% Acrylic Made of 80% acrylic and 20% wool. One size fits most with plastic snap strap closure, fitting up to size 7 1/2. Crown measures 4 inches deep, 6 panels, constructed, high profile. Bill measures 2 3/4 inches long, stiff and flat, green color under bill. Thick, soft and light material.