I just got one last weekend in Bergland, cuz I got a small crack in my Mod 2 shield, and I wanted a BV2S anyway. I rode it all last weekend, without any fogging ONCE I got it adjusted to my face. It wasnt real cold last weekend though. I also wore it tonight, about 0*F here, and had no problems. It will start to fog if I stop, but it clears the second I start moving. I am still playing with it yet. My Mod 2 was exactly the same way when I first got it. So far I like it, just gotta dial it in. I really liked my Mod 2 also, but the BV2S is a MUCH warmer helmet. BTW, I can fog just about every helmet on the market, including most of the cheaper electric shield helmets, and the 2 open face with goggles set I have tried.