HJC Rpha 91 Carbon Helmet The HJC Rpha 91 Carbon Helmet not only boasts striking, clean aesthetics but also enhances the joy of every ride. HJC's ingenious use of carbon fiber elevates both strength and lightweight properties, making it an outstanding choice for those seeking superior shock resistance in a modular helmet. Features: Premium Integrated Matrix carbon fiber shell Aerodynamic design shell reduces air resistance and provides stability at high speed Full front-to-back airflow, 5 intakes and 7 exhausts Pinlock Ready Hj-37 face shield Pinlock 120 Lens included Quick, Simple and Secure Visor Ratchet System Adjustable 3-step sunshield (Hj-V12) for optimized position Dark Smoke Sunshield Installed Interior with advanced anti-bacterial fabric provides enhanced moisture wicking and quick dry function Removable/washable crown and cheek pads Ready for 21B & 50B Bluetooth (sold separately) DOT approved