Great safety & comfort. In our world, crashes are a reality. Give yourself the best possible chance of keeping trauma to a minimum, buy the best helmet you can find to protect your head & brain. Leatt helmets feature category-defining 360° Turbine Technology, the helmet is lined with 360° turbines, which are discs constructed from an energy-absorbing material designed to allow the head to move slightly inside the helmet during a crash reducing rotational, direct, & deflective impact energy. This technology has two key advantages, the reduction of rotational acceleration to the head & brain & the absorption of energy upon impact at concussion level. Features Injected Polymer Compound shell in three sizes Brain injury reduction technology Reduces forces associated with concussion Ventilation channels to keep your head cool Inner liner is washable & breathable Double-D closure Designed to offer great neck brace mobility Visor has breakaway function to reduce forces to head & neck in a crash Certified & tested: DOT+ ECE 22.06 360° Turbine Technology Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion Reduces peak brain rotational acceleration by up to 40%