The S-M3 helmet is designed for MX, Enduro, and Off-road use and features a range of technologies and innovations optimized for ease of use, comfort, and impact performance.

The S-M3 helmet complies with ECE 2206 certification for worldwide use.
The patented visor release system ensures the visor is released with the correct amount of predetermined force, effectively reducing forces on the rider's neck during an impact.
Maximized ventilation and high levels of heat exchange thanks to 10 air intakes and 7 exhaust ports.
Alpinestars' patented low-friction liner is applied to the inside of the main EPS liner to reduce rotational acceleration forces that can result from certain oblique impacts.
This layer essentially acts as a slip plane to mimic the brain's low-friction cerebrospinal fluid, which is the body's natural defense against oblique impacts.
This lightweight helmet features a thermo-injected shell incorporating a special blend of polymers enhanced by varying degrees of thickness, designed to offer the optimal combination of impact protection and lightness.