1storm Motorcycle Bike Full Face Helmet Mechanic Glossy Black Smoked Shield, Size: Small, Gray

Helmets by 1Storm. Details:9/21.3 Inch M 55-56 CM 21.7/22.0 Inch L 57-58 CM 22.4/22.8 Inch XL 59-60 CM 23.2/23.4 Inch Helmet Size Tips (1)Wrap a measuring tape around your head about a half-inch above eyebrows (2)Take measurement two to three times to pick the largest one.Ultra light weight durable aerodynamic thermoplastic alloy shell. 3-level top ventilation control and 5-position ventilation channel. Heavily cushioned and comfortable interior, Removable and washable. Beautiful glossy UV protective finish. Aerodynamic rear venturi-effect exhaust spoiler; DOT Approved.