1storm Motorcycle Bike Full Face Helmet Mechanic Skull Tinted Visor Blue

Helmet Size Chart S 53-54 CM 20. 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 XXL 61-62 CM 23. 8/24. 1 Inch Helmet Size Tips 1Wra measuring tape around your head about a half-inch above eyebrows 2Take measurement two to three times to pick the largest one. Features: 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.Power Gear MotorsportsS 53-54 CM20.9/21.3 Inch. M 55-56 CM21.7/22.0 Inch. L 57-58 CM22.4/22.8 Inch. XL 59-60 CM23.2/23.6 Inch.