Alpinestars SM3 Heat Helmet — XS, Matte Silver

Designed for MX, enduro and off-road riding, this design blends comfort, ease of use and impact performance.

• Thermo-injected shell made from a polymer blend with variable thickness to optimize impact protection while keeping weight low.
• Patented low-friction coating applied to the inner EPS liner reduces rotational acceleration from oblique impacts by acting as a slip plane that mimics cerebrospinal fluid.
• Patented visor release system disengages at a predetermined force to reduce neck loads during an impact.
• Maximized ventilation with 10 inlets and 7 exhaust ports for efficient heat transfer.
• 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.

Comfort-focused liner and airflow channels maintain circulation and help manage temperatures during long rides.