HJC C91 Semi-Flat HelmetFeatures:-Advanced Polycarbonate Composite Shell-Advanced Channeling Ventilation System-Pinlock-Ready HJ-17 Visor-RapidFire Shield Replacement System-Integrated Sunshield-SuperCool Interior-Removable, Washable Crown and Cheek Pads-Ready for Smart HJC Bluetooth -Bluetooth Sold SeparatelySpecifications:-Standards: DOT-Construction: Advanced Polycarbonate Composite Shell-Weight: 3.76 lbs / 1706 grams -approx, based on Size Medium Solid Color