Big Size Low Profile Special Cotton Mesh Cap - Black Black (For Big Head) 100% Nylon Made of 50% nylon and 50% cotton. One size fits most with adjustable velcrorized closure, fitting from XL to 3XL. Crown measures 4 inches deep, 6 panels, unconstructed front, mesh back. Bill measures 4 1/4 inches long, 8 inches wide, under bill color is same with back mesh. Soft, and cool material.