Known for its ventilation and comfort, this all-purpose MTB helmet is equipped with 360 Turbine technology and offers excellent protection at a fair price. This fully ASTM DH-certified helmet is the ideal helmet for enduro and bike park riders. Uphill, downhill, upside down, e-bike or trail ? you name it, the Gravity 4.0 has it. The full-face design with removable mouthpiece offers excellent ventilation and the practical Fidlock® buckle simply makes life easier! We all crash. Sometimes hard and sometimes even harder! However, there is a solution to minimize the risk of head and brain injury ? get the best helmet you can find that reduces both rotation and impact energy to your head and brain! Our helmets feature the 360 ? Turbine technology, the helmet is lined with turbines 360 degree discs that are made of an energy absorbing shape and material, this technology has two exclusive benefits, reducing rotational acceleration to the head and brain and absorbing energy on impact to concussion levels. So, next time you crash, make sure you're protected by the best!