Alpinestars Motorcycle helmet SM3 Jettson

The S-M3 helmet is designed for MX, Enduro and off-road use, with optimised innovations and technologies for ease of use, comfort and performance in the event of an impact.
The thermally injected shell incorporates a special blend of polymers with variable thicknesses, designed to provide optimal protection against impacts and a reduced weight.
The innovative low-friction lining patented by Alpinestars is applied to the inside of the main EPS shell to reduce rotational acceleration forces during certain oblique impacts.
This layer acts as a sliding surface, mimicking the cerebrospinal fluid that naturally protects the brain from oblique impacts.
Patented visor release system ensuring release at a predefined force, effectively reducing forces on the neck during impact.
Optimised ventilation and high thermal exchange thanks to 10 air intakes and 7 exhausts.