This WWII Leather Pilots Hat can be used alone or as a liner under a helmet. This is a terrific reproduction of those used during WWII. Goatskin leather with synthetic suede lining, covered ear vents with zippers and adjustable leather straps on chin, forehead and back of the neck. Choose M/L (fits 7-1/8 to 7-1/2) or XL/XXL (fits 7-5/8 to 7-7/8). Also available in black.