HJC C10 GETI full face helmet: The C10 is an affordable full-face helmet for riders of all ages who value quality and safety. It offers a lightweight, superior fit, thanks in part to its Advanced Polycarbonate Composite shell, developed using advanced CAD technology. Combined with the optically superior wide vision visor and the improved "ACS" Advanced Channeling Ventilation System, which allows full airflow from front to back to direct heat and moisture upwards and outwards.