sm3 top vent sidesExpertly designed for off road enthusiasts, the S M3 Top Vent Sides are essential replacement ventilation components specifically for Alpinestars S M3 helmets. Constructed from high quality, durable plastic, these vents are engineered to maintain optimal airflow and thermal regulation during intense motocross sessions. This kit ensures your helmet's cooling system remains fully functional, providing consistent rider comfort and peak performance in all