Did you know that up to 50% of your body heat can escape thru your face? Stay warm. Get an Airhole.
My wife and I have been wearing Airholes for the past 4 seasons and they are by far the best masks out there. I've tried masks from other brands and nothing fits and protects like an Airhole. As silly as it sounds, the hole really works!! It is the perfect size and in the perfect spot so you can breathe freely with minimal freeze on the inside of the mask. Also, the no-snag velcro on the back is great for women with long hair...it won't catch.