Buy HJC RPHA 11 Pro Helmet - Saravo (Medium) (Black/RED): Helmets - ✓ FREE DELIVERY possible on eligible purchases. Since 1971, HJC has specialized in manufacturing motorcycle helmets exclusively. . The combination of this extensive specialized manufacturing experience, innovative ideas, and reasonable pricing resulted in HJC's success in worldwide markets. . It is HJC's continual goal to provide high quality, comfortable, and reasonably priced helmets to motorcyclists around the world.Advanced P.I.M. . Plus (Premium Integrated Matrix Plus) Fiberglass:Aerodynamic shell structure for extreme performance at maximum speeds.Fiberglass composite shell made from a blend of carbon fiber, fiberglass, and aramid to create a unique woven blend that is both strong and noticeably lighter.Wider eye port provides better peripheral vision for riders.Optimized shell design for airflow ventilation system.Max Airflow Top Vent:Six-stage variable airflow is adjusted by glove-friendly dials on each intake vent."ACS . Uses the HJC HJ-26 Shield as a replacement or upgrade. .