EEC/DOT Helmet, Open Face Helmet, Motorcycle Helmet(XH-D12)Adjustable back slide vents in rear diffuser EEC/DOT Helmet, ... Open Face Helmet, Motorcycle Helmet(XH-D12)ABS shellNew unique shell designDual Density EPS inner linerRemovable and ... -Large EEC/DOT Helmet, Open Face Helmet, Motorcycle Helmet(XH-D12)