Motocross Helmet ALPINESTARS SM3 JETTSON GRAY/PUR/BLK

Motocross Helmet ALPINESTARS SM3 JETTSON GRAY/PUR/BLK

• Shell construction featuring a thermo-injected shell incorporating a special polymer blend reinforced with varying degrees of thickness, designed to provide an optimal combination of impact protection and low weight.
• The S-M3 helmet is designed for use in the MX, enduro and off-road classes and includes innovations and technologies optimized for ease of use, comfort and impact performance.
• Alpinestars' patented innovative low-friction coating is applied to the inside of the main EPS liner to reduce rotational acceleration forces that can occur in some oblique impacts.
• The patented visor release system ensures the visor is released with the correct predetermined force, effectively reducing forces on the neck during an impact.
• Maximum ventilation and high levels of heat exchange thanks to 10 inlets and 7 outlets.