Leatt ADV 8.5 Helmet. Premium Head, Brain and Eye Protection. Three-year Helmet Replacement Program. Composite shell in three (3) shell sizes. 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%. Photochromic shield attached, clear shield extra inside the box. FREE Velocity 4.5 Goggles included. Pinlock® 120 MaxVision XLT Antifog included. Four-Way Rider Setup: Shield and Goggles and Visor. Shield and Visor. Goggles and Visor. Shield and NO Visor. Wind tunnel tested shell design significantly reduces drag and lift. Chin curtain and cheek pads seal around the neck for noise reduction.