The Vapor is the result of extensive 3D computer modeling and design complemented by exotic composite construction to create an aerodynamic & ultra lightweight helmet.
As with all personal safety devices, helmet fit is vitally important and can increase the risk of injury if not properly fit.
Carefully measure the head approximately one inch above the eyebrows across a point at the back of the head that gives the largest measurement. Please remember: Helmets will "break in" with use. It is important that the helmet fits as tight as one can comfortably withstand to wear.
• Small - 21-5/8" to 22"
• Medium - 22-1/2" to 22-3/4"
• Large - 23-1/4" to 23-5/8"
• X-Large - 24" to 24-1/2"
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