The best safety and Pro-Fit comfort. In our world, crashes are a reality. Leatt helmets feature category-defining 360 degrees Turbine Technology, the helmet is lined with 360 degrees 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. Once on your head you will quickly forget you are wearing a helmet. The Pro-Fit modulating comfort liner stretches over your head to provide superior comfort and stability,Includes visor extender and Free Leatt Velocity goggles!