The modular helmet combines the features of a full-face helmet and an open-face helmet. It has a hinged chin bar that can be flipped up to expose the rider's face, providing more ventilation and convenience when stopped. When the chin bar is closed, the helmet provides full coverage of the head, protecting the rider from impacts, wind, and debris. The modular helmet is popular among touring and commuting riders who value versatility and convenience. It is also favored by law enforcement officers and other professionals who need to communicate easily with others while wearing a helmet.