ALPINESTARS(MX) SM3 Radium Helmet — 2XL, Matte Gray
Engineered for MX, enduro and off‑road riding with advanced shell construction, a low‑friction liner and a patented visor release system.
Maximized ventilation with 10 inlets and 7 exhaust ports.
Engineered for MX, enduro and off‑road riding with advanced shell construction, a low‑friction liner and a patented visor release system.
Maximized ventilation with 10 inlets and 7 exhaust ports.
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 variable thickness to deliver an optimal combination of impact protection and lightweight design.
A patented low-friction coating is applied to the inner EPS liner to reduce rotational acceleration from oblique impacts.
This slip-plane layer mimics the brain's natural cerebrospinal fluid to help mitigate forces from angled impacts.
The patented visor release system ensures the visor releases at a predetermined force, reducing loads on the neck during an impact.
Maximized ventilation with 10 inlets and 7 exhaust ports provides efficient heat transfer and airflow. 🌬️