Alpinestars SM3 Heat Helmet — Size L, Matte Silver

Designed for MX, enduro and off‑road riding, this helmet balances ease of use, comfort and impact performance.

Thermo‑injected shell combines a specialized polymer blend with variable thickness to deliver impact protection while keeping weight low.

An innovative low‑friction coating on the inner EPS liner reduces rotational acceleration in oblique impacts by mimicking the brain's cerebrospinal fluid.

A patented visor release system reduces neck forces by allowing the visor to detach at a predetermined force.

Maximized ventilation with 10 inlets and 7 exhaust ports ensures efficient heat transfer and airflow during high‑intensity use.