The design of the S-M10 helmet is consistent with Alpinestars' philosophy and shares distinctive themes with other Alpinestars products: a smooth, attractive profile, tapered and free of external elements and channels that could act as load points in the event of an impact or compromise the overall integrity of the structure.

The curvature of the surface helps reduce friction on impact, allowing for deflection and more efficient energy transfer to protect the rider's head from direct forces on the skull and those transmitted to the neck and spine. The opening is designed to accommodate a wide variety of goggles, and the vents in the shell are positioned to maximize ventilation efficiency.

1. The S-M10 shell was designed with performance as a priority, with a design style that identifies the helmet's profile and contoured surface as uniquely 'Alpinestars'.
2. Another key feature is the S-M10 shell's sizing solution; Each helmet size has its own specific shell to offer the most anatomical solution for the wide variety of fit needs worldwide.
3. The helmet shell construction uses highly advanced molding technology with a multi-composite combination:

Technical Data Sheet:

3K Carbon, a high-density carbon outer layer that improves the strength and energy dissipation efficiency of the shell.
Unidirectional carbon composite layer that offers significantly greater radial resistance around the shell, preventing compression but allowing controlled deflection to reduce the transmitted impact energy.
Aramidic fiber layer that provides critical protection against penetration.
This combination of layers offers even higher performance thanks to the epoxy resin that offers the best possible strength and energy distribution; the limited deflection of the outer shell allows energy to spread more widely and be better absorbed by the EPS liner.
The exclusive shell layering process used in the construction of the S-M10 results in extremely effective impact protection.
Thanks to a highly equipped helmet testing facility within Alpinestars' Racing Development Center, an extensive impact research program has ensured that the Supertech M10 delivers linear and oblique impact performance that far exceeds current helmet regulatory limits.
For direct impact, linear, with an average magnitude of 41%, and for rotational acceleration, oblique, with an average of 48%.