The new 509 Atmosphere Offroad Helmet brings the next generation of safety, affordability, and style to dirt riders. Whether you ride track or trail safety is a priority. Dual certified for both DOT and ECE 22.06 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.