Since 1971, HJC has specialized in manufacturing motorcycle helmets exclusively. The combination of this extensive specialized manufacturing experience, innovative ideas, and reasonable pricing resulted in HJC's success in worldwide markets. It is HJC's continual goal to provide high quality, comfortable, and reasonably priced helmets to motorcyclists around the world. Advanced polycarbonate compact shell. Lightweight, superior fit and comfort using advanced CAD technology. SuperCool® moisture-wicking interior is removable and washable. Large eye port for maximum visibility and superior goggle fit. Pin-prepared HJ-27 shield for anti-fog lens. Aerodynamic visor and shell. Easy converting system from shield and visor to visor-only helmet. Chin curtain included. "ACS" Advanced Channeling Ventilation System: Full front-to-back airflow flushes heat and humidity up and out.