HJC V10 The C91 helmet will offer riders some of the best features on the market at a budget-friendly price. Starting with the Advance Polycarbonate Composite Shell. It provides a lightweight helmet with a superior fit and comfort using advanced CAD technology. The chin bar operates with an easy to use a single lever and is user friendly with gloves. It also includes an internal sun shield with a manual mechanism that moves forward and back with ease. The large top vent allows airflow ventilation throughout the deep EPS channels of the helmet, keeping you cool on rides. The SuperCool top liner and cheek pad interior gives additional cooling features with its moisture-wicking anti-bacterial fabric. The C91 is also Smart HJC ready to accept the 10B or 20B Bluetooth systems (*sold separately). Advanced Polycarbonate Composite Shell Advanced Channeling Ventilation System Pinlock-Ready HJ-17 Visor RapidFire Shield Replacement System Integrated Sunshield SuperCool Interior Removable, Washable Crown and Cheek Pads Ready for SMART HJC Bluetooth (Bluetooth Sold Separately)