Developed over a decade, the Supertech R10 is Alpinestars' most advanced race helmet, designed for ultimate protection, aerodynamic efficiency, and lightweight performance. Rigorously tested with MotoGP legends like Andrea Dovizioso, Jorge Martin, and Jack Miller, the S-R10 delivers unparalleled safety, ventilation, and comfort. Included: 2 shields (clear and dark smoke), 2 interchangeable race and standard spoilers (Race and Road), a tear-offs set, a Pinlock lens, a wind deflector, a breath deflector, and a helmet bag. SizeGuide... * optimized chin bar design for maximum collarbone protection * In addition to the aerodynamic and air resistance optimized shell, the helmet was also designed with a recess in the collarbone area to ensure a softer volume in the event of body contact * The chin bar has a light and robust profile to protect the tip of the driver's chin | Article: Alpinestars Supertech R10 Team Carbon Helmet, black-red-blue, Size L for Men