UV 50+ Side Snap Talson Sun Bucket Hat (XL-2XL, Khaki) 100% Nylon Made of 100% nylon. One size (fitting up to 7 3/8), XL-2XL and 2XL-3XL with size adjustable chin string. Crown measures 4 inches deep with side mesh, with chin string. Brim measures 2 3/4 inches wide, with side snaps to upturn. UV 50+ excellent sun protection.