Big Size Summer Twill Mesh Flexible Fitted Cap - Stone Khaki (For Big Head) cotton/polyester Made of 60% cotton and 40% polyester. Please note that this will be too large for an exact size XL (7 1/2 or 23 1/2&#34;) person. Crown measures 4 inches high, 6 panels, unconstructed front, low profile. Bill measures 4 inches long, pre curved, same color under bill. Thick, light and cool material.