Composite shell with aerodynamic energy-deflecting design reduces friction and channels impact forces away from the head for superior protection. Patented PLASMA technology integrated into the side pads delivers high-performance shock absorption at critical collarbone areas. A-Head fitment system and tailored shell sizing provide adjustable angle, height, and three shell sizes across six consumer sizes for a precision performance fit. Patented visor release system automatically detaches under impacts greater than 15 Joules to help minimize rotational forces during a crash. Meets ECE 22.06 and DOT safety standards, exceeding peak rotational acceleration limits by 76% for proven off-road impact performance. Meets Federal Motor Vehicle Safety Standard 218 (FMVSS 218). The S-M7 Helmet is engineered for off-road racing, and is optimized to offer the perfect blend of superior ventilation and comfort in a lightweight helmet, while its supremely aerodynamic composite shell delivers exceptional impact protection. As well as Alpinestars patented A-Head Fitment and Visor Detaching Systems, the S-M7 is equipped with innovative PLASMA technology at the lower side of the shell edge for optimum energy dissipation in case of contact with the collarbone area.