Alpinestars SM3 Jettson Helmet — Size 2XL, Black/Gray/Purple

Engineered for MX, enduro and off‑road riding, combining ease of use, comfort and optimized impact performance.

Thermo-injected shell uses a special polymer blend with variable thickness to balance impact protection and lightweight design.

Patented low-friction coating applied to the inner EPS liner reduces rotational acceleration from oblique impacts by providing a slip plane similar to cerebrospinal fluid.

Patented visor release system ensures the visor separates at a predetermined force to reduce neck loads during an impact.

Maximized ventilation with 10 inlets and 7 exhaust ports for efficient heat transfer and airflow.