Alpinestars SM3 Force Helmet — Size M, White

The SM3 Force helmet is engineered for MX, enduro and off‑road use, featuring innovations and technologies optimized for ease of use, comfort and impact performance. 🏁

The thermo‑injected shell incorporates a special polymer blend with varying degrees of thickness, engineered to deliver an optimal combination of impact protection and light weight.

An Alpinestars patented low‑friction coating is applied to the inner EPS liner to reduce rotational acceleration forces that can result from certain oblique impacts; this layer acts as a slip plane to mimic the brain's own low‑friction cerebrospinal fluid. 🧠

A patented visor release system ensures the visor releases at a predetermined force, effectively reducing forces on the neck during an impact.

Maximized ventilation and high levels of heat transfer exchange are achieved with 10 inlets and 7 exhaust ports.

Composition: 48% acrylonitrile‑butadiene‑styrene, 20% polyurethane, 16% polystyrene (EPS), 6% polypropylene, 4% polyvinyl chloride, 2% ethylene‑vinyl acetate, 2% steel, 1% expanded polypropylene, 1% polyamide.