Juniper UV 50+ Talson Short Flap Cap - Khaki 100% Nylon Made of 100% nylon. One size fits most with string closure, fitting up to XL size. Crown measures 3 1/2 inches deep, unstructured, low profile and soft with side mesh. Bill measures 4 inches long, 8 1/2 inches wide, same trim color under bill. Back flap measures 4 inches long and 12 inches wide, attached.