I've got a full-on neoprene one and I found that it tends to vent near the cheekbones promptly fogging up goggles or glasses. I tried opening the mouthholes to no avail and some detriment as my lips are more exposed. This design may not do that if it's a little snugger at the top and allows good air exchange. I'm going to play around with mine a bit and see if I can vent it differently.

I brought it with me today, but the man-fur sufficed.

I'll be away for a week around the 25th, but I'm up for a ride and swill at some point. We should definitely get the scotch ride happening.