Kask Protone Helmet Aero Control Technology creates an incredibly aerodynamic and top-performing shell, tested in the Wind Tunnel and able to provide an impressive CX rate MIT Technology guarantees higher safety and complete protection, thanks to the polycarbonate layer that covers the shell on the top, on the base ring and on the back In-Mold construction joins the inner polystyrene core to the outer polycarbonate layer to ensure better shock absorption Reinforced frame protects the shell from secondary impacts