HJC C10 The C10 is an all-new competitively priced full-face helmet for riders of all ages that value quality and safety, offering a lightweight superior fit thanks in part to its Advanced Polycarbonate Composite shell that was designed using advanced CAD technology. Combined with a wide-view optically-superior face shield and its improved ACS Advanced Channeling Ventilation system that allows full front-to-back airflow to flush heat and humidity up and out, the C10 provides a safe and comfortable ride no matter the conditions. With sizes ranging from 3XS to 2XL, the C10 delivers the same great protection for both youth and adult riders alike. Polycarbonate composite shell New lower mouth and top vents provide better air intake Increased ventilation with enhanced defogging New, wind tunnel tested rear spoiler greatly reduces air drag Includes Pinlock prepared HJ-34P shield Improved vision with up to 10mm increased side view Four shell sizes, including youth size Interchangeable cheek pads Removable, washable interior Universal clamp space makes for easy installation of any Bluetooth device