The best safety & comfort. In our world, crashes are a reality. Give yourself the best possible chance of keeping trauma to a minimum by selecting 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. The 3.5 is both ECE & DOT certified. Features Injected Polymer Compound shell in three sizes Multi-density impact foam 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% Moisture wicking, breathable, anti-odor & washable inner liner Optimal neck brace compatibility Visor with breakaway function for rotational reduction in a crash Emergency cheek pad removal Certified & tested: DOT, ECE 22.05 or JIS T 8133:2015 Weight: DOT & ECE from 1.270 gr. Note Please be aware, as long as nothing else is written in the item description: All helmets will be delivered only with the ECE certification by default