Designed for MX, enduro and off-road use, the SM3 helmet blends ease of use, comfort and improved impact performance. 🏁
- Thermo-injected shell construction uses a special polymer blend with variable thickness to balance impact protection and lightweight performance.
- Alpinestars' patented low-friction coating is applied to the inner EPS liner to reduce rotational acceleration from oblique impacts, acting as a slip plane similar to cerebrospinal fluid.
- Patented visor release system ensures the visor releases at a predetermined force to reduce neck loads during impact.
- Maximized ventilation with 10 inlets and 7 exhaust ports delivers high heat transfer and airflow.
- Materials: 48% acrylonitrile-butadiene-styren, 20% polyurethane, 16% polystyrene (EPS), 6% polypropylene, 4% polyvinyl chloride, 2% ethylene-vinyl acetate, 2% steel, 1% expanded polypropylene, 1% polyamide.