And ... why goggles? I ride at those temps with just my regular glasses ... what benefit do goggles have?
It was -2F here last night and I bundled up too well for my commute into town for 2nd shift. I had my goggles on but had to lift them because of breath-frost and excess body heat. [[[note to self -- make a custom snorkle-like device to direct my breath back from my glasses]]]
It was cold, but not unbearable (I wear glasses, too) without the goggles. I did have to reduce my speed a bit. But that had more to do with not wanting to heat up.