Going to work today, a guy took my picture. I circled back and asked him to email it to me. He did. He couldn't believe that someone would be on a bike at 21F.

Impressive:
Do you ride with studied tires?
On flat and going up hill one can relatively keep warm, but going down particularly long descent is hard to keep warm no matter what--had the experience today coming back down from a 3,800' summit!
I hate winter and can't wait when spring comes back--but I have to ride to keep sane!