sm3 top vent sides white mx past moisture-wicking polyfabric construction features an

moisture-wicking polyfabric construction features an ergonomic pre-curved pattern and new stretch mesh side panels for superior breathability

Easy to use and comfortable

as well as riding protection and confidence

Part of the all-new 2026 collection

sm3 top vent sides white mx past moisture-wicking polyfabric construction features anExpertly designed for the S M3 helmet, these Top Vent Sides are essential replacement components for maintaining peak ventilation performance during off road riding. Constructed from durable, high impact plastic, they feature precision engineered airflow channels to ensure consistent cooling and heat management. These genuine Alpinestars accessories guarantee a perfect fit and seamless integration with your motocross gear ecosystem.