LS2’s high-end carbon race helmet. Using LS2’s innovative design and performance features, the Thunder Carbon gives the rider a real riding experience, providing lightness, resistance, and insulation for your race.The FF805 offers multiple shell sizes, specifically sized EPS protective liners and LS2’s high quality, high-performance comfort padding with LS2’s exclusive 3D Laser Cut Foam for the perfect fit and all-day comfort.