Alpinestars SM3 Heat Helmet — XL, Yellow

The SM3 Heat Helmet is engineered for MX, Enduro and off-road use, featuring innovations optimized for ease of use, comfort and impact performance. 🔥

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

An innovative low-friction coating is applied to the inner part of the main eps liner to reduce rotational acceleration forces from oblique impacts, mimicking the brain's natural cerebrospinal fluid slip plane.

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

Ventilation is maximized with 10 inlets and 7 exhaust ports to promote high heat transfer and consistent airflow.

Shell 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.