Alpinestars SM3 Jettson Helmet — Size S, Gray

This helmet is engineered for MX, enduro and off-road use, featuring innovations and technologies optimized for ease of use, comfort and impact performance.

Shell construction uses a thermo-injected design with a special polymer blend and varying thicknesses to deliver an optimal combination of impact protection and light weight.

A patented low-friction coating on the inner EPS liner reduces rotational acceleration from oblique impacts by acting as a slip plane similar to cerebrospinal fluid.

A patented visor release system ensures the visor releases at a pre-determined force to reduce neck loads, while maximized ventilation with ten inlets and seven exhaust ports improves heat transfer.