HJC RPHA 71 Carbon Hamil MC-1 HelmetHJC RPHA 71 Carbon Hamil MC 1 Helmet Designed to bridge the gap between sport riding and touring, the HJC RPHA 71 Helmet meets the needs of riders who want both the lightweight performance, airflow and protection of a race helmet and the comfort, quiet and convenience of a touring helmet. Features: D. O. T. Approved Carbon Fiber Outer Shell Aerodynamic design shell reduces air resistance and provides stability at high speed Full front to back airflow,