The Alpinestars S-M10 helmet is designed for ultimate protection, comfort, and aerodynamics. Its smooth, streamlined profile eliminates external channels and features that could act as load points during an impact, ensuring maximum structural integrity. The carefully contoured surface reduces friction upon impact, allowing energy to be deflected away from the skull, neck, and spine for enhanced safety. With a multi-shell sizing system, each helmet size has a specifically designed shell, optimizing fit, comfort, weight distribution, and impact effectiveness. The sculpted chin bar features a relief section and a raised base for improved collarbone clearance, while the soft EPS liner extends beyond the shell and is coated with a flexible rubber compound to further reduce the risk of collarbone injuries. The A-Head Fitment System allows for easy adjustments to the helmet’s angle and height, ensuring a precise and comfortable fit. Ventilation is a key feature, with 28 strategically placed intake and exhaust ports—18 intakes and 10 exhausts—providing superior airflow to keep riders cool in demanding conditions. The Eject Helmet Removal System ensures safe helmet removal in emergencies, while the helmet is engineered to manage rotational acceleration and oblique impacts effectively. Removable side pads, made from a semi-soft polymer, help distribute impact energy across a broader surface area for added protection. The Emergency Release System (ERS), along with the Emergency Visor Release and Visor Extension, enhances safety by allowing quick and easy helmet removal when needed. Designed with cutting-edge technology and rider safety in mind, the Alpinestars S-M10 sets a new standard in performance, protection, and comfort.