Shell Shell made from TRI-fiber composite that allows to get a lighter shell but, at the same time, a more protective. The outer shell, made from tricarboco fiber, a mix of kevlar, carbon & fiberglass with different weights/breaking loads linked up, loads, linked up with aramid resins ensures a lighter, harder more safety & impact resistant shell. To satisfy even the most demanding & professional riders, SKY HAWK is made in 2 different shells: M & L. Protective Polystyrene Internal polystyrene is made from 2 different sizes (M & L) to obtain the best ergonomics with different thickness. This characteristic allows a gradual & progressive absorption of the impact force generated by an impact. Although most of the energy due to an impact is absorbed by the outer protective shell due to its deformation, the role of polystyrene is decisive for the absorption of residual energy. Ventilation The air intakes are designed to increase internal comfort, the air flow is channeled into the inne...