I feel the heat perhaps more than some, yet can withstand cold extremely well. (Must be my Polar Bear style layer of extra insulation?) In that regard, I sometimes skip the helmet when the temps are high. Not wearing a helmet on some trips could be the stupidist thing I ever did, but that's the way I roll. I wear a half helmet on some short rides, and recently bought a bright yellow full face flip up. It's ugly, but hopefully of high visibility to other motorists in fog and at dusk & dawn. I enjoy the extra quiet and protection from the full face, but it does get a little top heavy after a while. I imagine I'll get used to it. The best part about the full helmet to me is being able to listen to an audio feed via ear plug head sets. I can still hear the engine just fine up through the bottom of the helmet.
