ALPINESTARS(MX) SM3 Radium Helmet — M, Gray

Engineered for MX, enduro and off‑road use, this protective headgear blends ease of use, comfort and verified impact performance. 🏁

The thermo‑injected shell features a special polymer blend with variable thickness to deliver an optimal balance of impact protection and low weight.

A patented low‑friction layer is applied to the inner EPS liner to reduce rotational acceleration from oblique impacts by acting as a slip plane similar to the brain's cerebrospinal fluid.

The calibrated visor release system ensures the visor releases at a predetermined force, helping to reduce forces on the neck during an impact.

Maximized ventilation with ten inlets and seven exhaust ports provides efficient heat transfer and sustained airflow for longer rides. 🌬️