Alpinestars SM3 Radium MX Helmet Color:Gray/Black/Yellow Fluo With the 5TECH™ shell and

With the 5TECH™ shell and 200G insulated liner

windshield support & hardware

E-Waist Tunnel Drawcord

All high abrasion areas are reinforced with a double canvas layer

The Largest

Alpinestars SM3 Radium MX Helmet Color:Gray/Black/Yellow Fluo With the 5TECH™ shell andEngineered for MX, Enduro, and off road riding, the SM3 Helmet integrates advanced technologies and innovations designed to enhance ease of use, comfort, and impact protection. Its ergonomic build ensures daily ease, while premium materials absorb impacts. Built for competitors and trail enthusiasts alike. Features Advanced Shell Construction: This helmet features a thermo injected shell incorporating a special polymer blend enhanced by varying