That's really the attraction. The ability to open up the face. To breathe, get fresh air, smoke, talk, what have you. It is simply the ability to lift the front chin bar up out of the way. I used a BRP modular for many years, the warmer it was the more I liked it. More for the ability to get fresh air and to breathe easier at slow speeds or stops without taking the helmet off. A matter of personal preference.