Alpinestars Supertech SM10 Deegan Helmet

The S-M10 shell sizing solution ensures each helmet fit size has its own appropriate shell size to deliver the most anatomical solution for the wide variety of fit needs, thus ensuring riders have the correct fit to improve comfort, reduce overall weight, and improve effectiveness of the helmet in an impact Chin bar's base area specifically sculpted to give a relief section and raised to clear the collarbone A-Head Fitment System allows easy adjustment of the angle and height that the helmet sits on the head Soft EPS liner extends beyond the helmet shell itself and is covered by a flexible rubber compound providing a reduced chance of any sort of collarbone injury The S-M10's design offers a smooth, attractive, aerodynamic profile which is streamlined and free of any external channels and features that might act as a load point in an impact or compromise the overall integrity of the helmet's construction Surface curvature promotes reduced friction on impact, allowing deflection