I used to use full face helmets all the time, with and without the elements and where i am from they always fogged up,It was either the visor or my glasses that would fog up. It is usually really cold around here, -20 to -30. I bought a sled from my brother and he had snocross style helmet which came with the sled, I used once and have never turned back, I can honestly say i will never use a full face helmet again. So in my case it has nothing to do with trying to be cool. It is just a preference. Oh yeah a balaclava helps alot with the air gaps and cold.