Even the sky won't limit your riding in the 509's new game-changing Atmosphere Helmet. Built for riders who prioritize comfort, cost-effective performance, and safety. When entering into riding on snow safety is a priority, with both DOT and ECE 22.06 certifications this helmet meets international safety standards for ultimate protection. The double D-ring chin closure and strategically placed venting ports manage moisture and enhance airflow, quick-dry cheek pads and liners do the work, while you concentrate on the ride. DOT approved. Meets the FMVSS 218 Standard.