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. 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, The all new 8.5 helmet is a great choice for any Thrill-seeker and is both ECE and DOT certified!