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 composite shell. ACS - Advanced channeling ventilation system. Pinlock® ready HJ-36 visor. Quick, simple, secure shield ratchet system. Double D-ring chinstrap. Removable, washable crown and cheek pads. Rotational chinbar. Grooves for eyeglass wearers. Bluetooth compatible with Smart HJC (Bluetooth system sold separately). Standards: DOT. Weight: 4.14 pounds / 1879 grams (approximately, based on Size Medium Solid Color).