Unparalleled dampingThe outer shell, made of absorbent polymer, absorbs the first part of impacts by deforming.The 2nd layer takes up the energy of the impact and absorbx it.The 3rd layer, made of fibreglass, ensures the rigidity of the entire helmet to avert any lateral compression.The 4th layer is the polystyrene shell which completes the deceleration of the impact by crumpling under the impact, thus protecting the cranial vault from brain injuries.An optimal ventilation systemThanks to its numerous front and side vents and its rear outlets, this helmet offers maximum ventilation.Unparalleled comfortThis new one-piece, and removable, liner is washable and, where necessary, can be replaced. The soft and fluffy inner has been given an antibacterial treatment.Maximum safety thanks to exemplary stability!The twin lock system (TLS), the patented rigid chinstrap, has been completely redesigned to provide maximum stability and hold previously exclusively reserved for motorcycle helmets. In