Alpinestars SM3 Heat Helmet — Size 2XL, Silver

The SM3 Heat helmet is engineered for MX, Enduro and off-road use, combining ease of use, comfort and impact performance.

Shell construction uses a thermo-injected shell with a special polymer blend and variable thickness to deliver an optimal combination of impact protection and light weight.

A patented low-friction coating on the inner part of the main EPS liner reduces rotational acceleration forces from oblique impacts by acting as a slip plane similar to cerebrospinal fluid.

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

Ventilation is maximized with 10 inlets and 7 exhaust ports for high levels of heat transfer and airflow.

• Materials: 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.