Alpinestars SM3 Heat Helmet — M, Yellow
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SM3 Heat Helmet 🔥 is engineered for MX, enduro and off‑road use, with innovations focused on ease of use, comfort and impact performance.
The thermo‑injected shell uses a special polymer blend with varying thicknesses to balance impact protection and lightweight design.
A patented low‑friction coating on the inner EPS liner reduces rotational acceleration from oblique impacts by creating a slip plane that mimics the brain's cerebrospinal fluid.
The helmet features a patented visor release system that releases the visor at a predetermined force, helping to reduce neck loads during an impact.
Ventilation is maximized through 10 inlets and 7 exhaust ports to promote high levels of heat transfer and airflow.
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.
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