Product Description: The Enhanced Head is intended for instructors only. It is designed to be worn when the instructor's head is a target area for light blunt force. It features extra layers of foam, a fully covered back and is designed to be worn with the Throat Guard and Collar. It can be used with the attachable Face Cage, Safety Glasses or Face Shield. The RedMan Enhanced Head Assembly provides enhanced protection for law enforcement instructors. Features: For instructors Designed for light blunt force Extra layers of foam Fully covered back Designed to be worn with Throat Guard and Collar Sizing: HeadGear B Circumfrance Hat Size Medium 21" - 22" 6 7/8-7 1/4 Large 22 1/2" - 23" 7 1/4 - 7 5/8 X-Large 23 1/2" - 24" 7 1/2 - 7 A 3/4