🔰 The SM3 Helmet is engineered for MX, Enduro and off-road use, featuring innovations and technologies optimized for ease of use, comfort and impact performance.
Its thermo-injected shell construction uses a special polymer blend with variable thickness to deliver an optimal balance of impact protection and light weight.
Alpinestars' patented low-friction coating is applied to the inner EPS liner to reduce rotational acceleration from certain oblique impacts by creating a controlled slip plane.
That slip plane mimics the brain’s natural cerebrospinal fluid, offering an additional layer of defence against oblique impacts.
A patented visor release system ensures the visor detaches at a predetermined force to help reduce neck loads during an impact.
Maximized ventilation and efficient heat transfer are achieved through 10 inlets and 7 exhaust ports for constant airflow.
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