1Storm Motorcycle Street Bike Modular/Flip up Dual Visor/Sun Shield Full Face Helmet Carbon Fiber Black DOT Approved; Size XS (51-52 CM,20.1/20.5 Inch); Advanced Modular/Flip up and Dual Lens Design (inner smoked lens/outer clear shield); Light Weight Durable Aerodynamic Thermoplastic Alloy Shell Beautiful Glossy UV Protective Finish Removable and Washable Padding