The LEATT MTB Helmet All Mountain 4.0 features the revolutionary 360° Turbine Technology, providing exceptional protection by reducing impact forces by up to 30% and rotational forces by up to 40%. Fully equipped for all your adventure needs, it includes a convenient Fidlock® buckle for easy operation. When not needed, your eyewear can be quickly and easily attached to the designated sunglasses docking port. This helmet comes in three sizes with a polycarbonate outer shell and weighs approximately 430g. To ensure maximum ventilation at lower speeds, the DBX 4.0 is designed with 13 ventilation ports. Certified for safety standards: AS/NZS 2063:2008, EN1078, CPSC 1203.