The Leatt 2.5 helmet represents great protection, design, and value! In off road riding, crashes are a reality, give yourself the best possible chance of keeping trauma to a minimum by protecting your head and brain - invest in a great helmet. 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, and deflective impact energy. This technology has two key advantages, the reduction of rotational acceleration to the head and brain and 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 and breathable - Designed to offer great neck brace mobility - Visor has breakaway function to reduce forces to head and neck in a crash - 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% - Plastic free recyclable packaging - Certified and tested: DOT+ New ECE 22.06