Martian Motorcycle Modular Full Face Helmet Flip Up Dual Visor Sun Shield Motorcycle Bluetooth Headset

Advanced Modular/Flip up and Dual Lens Design (inner smoked lens/outer clear shield); Helmet comes with motorcycle Bluetooth headset as bundle (installation required); Light Weight Durable Aerodynamic Thermoplastic Alloy Shell; Beautiful Glossy UV Protective Finish; Removable and ...Advanced Modular/Flip up and Dual Lens Design (inner smoked lens/outer clear shield); Helmet comes with motorcycle Bluetooth headset as bundle (installation required); Light Weight Durable Aerodynamic Thermoplastic Alloy Shell; Beautiful Glossy UV Protective Finish; Removable and Washable Padding; DOT approved; Helmet Size Chart /b br br S 55-56 CM 21.7/22.0 Inch br M 57-58 CM 22.4/22.8 Inch br L 59-60 CM 23.2/23.4 Inch br XL 61-62 CM 23.8/24.1 Inch br XXL 63-64 CM 24.4/24.8 Inch br Helmet Size Tips /b br br (1)Wrap a measuring tape around your head about a half-inch above eyebrows br (2)Take measurement two to three times to pick the largest one.