HJC i91 Modular Carst Helmet The HJC i91 Modular Helmet is crafted from a polycarbonate composite shell designed for optimal air circulation and performance. Its three shell sizes ensure a superior fit, while the removable and washable cheek pads maintain a fresh feel ride after ride. Embrace convenience with the dynamic Hj-V12 sun visor that eliminates the need for sunglasses. Features: A comfortable, user friendly modular helmet aimed at touring, commuting, and urban riders Aerodynamically stable shell shape with a tight seal around the jaw and available integrated Bluetooth Good internal airflow through the EPS Oversized drop down internal sun visor with unique forward-sliding deployment Polycarbonate Composite Shell 3 shell sizes: Shell 1: Xs-Sm Shell 2: Md-Lg Shell 3: Xl-2Xl Slim and sleek front view High performance enhanced air circulation Hj-33 Pinlock prepared face shield Dynamic multi-step Hj-V12 sun visor Double D-ring with retention strap Smart HJC Bluetooth Ready Removable/washable cheek pads DOT approved