ALPINESTARS(MX) SM3 Heat Helmet — Size L, White
Off-road helmet with advanced shell construction, low-friction liner and high ventilation.
Off-road helmet with advanced shell construction, low-friction liner and high ventilation.
The SM3 Helmet is engineered for MX, Enduro and off-road use, featuring innovations optimized for ease of use, comfort and impact performance. 🏁
Thermo-injected shell construction uses a special polymer blend with varying thickness to balance impact protection and light weight.
An innovative low-friction coating is applied to the inner EPS liner to reduce rotational acceleration forces that can result from oblique impacts.
This slip-plane layer mimics the brain's cerebrospinal fluid, the body's natural defence against oblique impacts. 🧠
Patented visor release system ensures the visor releases at a predetermined force, reducing forces on the neck during an impact.
Maximised ventilation with ten inlets and seven exhaust ports improves heat transfer and rider comfort. 🌬️