Alpinestars SM3 Radium Helmet Gloss Black/White/Gray XL

Description

The Alpinestars SM3 Radium Helmet in Gloss Black/White/Gray (XL) delivers advanced protection and comfort for MX, Enduro, and Offroad riders. Featuring a thermo-injected shell with a polymer blend and varied thickness for optimal impact protection and reduced weight, this helmet includes a composite fiber inner shell for added safety. Its multi-density EPS liner maximizes impact absorption and minimizes rotational forces. The SM3 offers ten intake and seven exhaust vents for superior ventilation, a specially designed visor for enhanced airflow, and an emergency release system with removable cheek pads. The comfort liner utilizes recycled materials, and hydration tube channels are integrated for added convenience. The helmet conforms to both DOT and ECE 22.06 safety standards, ensuring reliable protection on every ride.