GREAT HEAD AND BRAIN PROTECTION Great safety and comfort. All new for 2023 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. The 2.5 is both ECE and DOT certified. If you are looking for a helmet kit that includes FREE goggles check out the all new 3.5! Part#: 1023011500-Xs 1023011501-Sm 1023011502-Md 1023011503-Lg 1023011504-XL 1023011505-2X