Alpinestars SM3 Heat Helmet — XS, White

The SM3 Heat Helmet is engineered for motocross, enduro and off-road use, combining user-focused innovations for comfort and impact performance.

Its thermo-injected shell uses a special polymer blend with variable thickness to balance lightweight construction and protection.

A patented low-friction coating is applied to the inner EPS liner to reduce rotational acceleration from oblique impacts, creating a slip plane that mimics the brain's cerebrospinal fluid.

The visor release system is designed to release at a predetermined force to lower neck loads during an impact.

Ten intake vents and seven exhaust ports maximize ventilation and heat transfer.

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.