I set out with Shyla, who was shod in dog boots to protect her toes. Her toes seem to be the only part of her that gets cold during exercise even in Arctic temperatures.
Her face quickly got covered in frost.
Similarly, my neck gaiter, hat, and hair all had frost on them by the end of our ride. However, I was warm!!! In fact, I even overheated during a long uphill slog. Of course, I was wearing six layers on my upper body and three on my legs. I had chemical toe and hand warmers because I have Renaud's Syndrome, which means that my toes and fingers can't stay warm no matter how many layers I wear unless I provide them with a source of heat.
Shyla and I had a lot of fun. She wore her UltraPaws which are the only kind of dog boots that don't make her too morose to run and jump.
Then, the Runner and I did a whimsical experiment. We boiled a few cups of water which the Runner tossed into the air while I videoed. The result was FUN. Check out our short video of the boiling water instantly turning into snow when the Runner tossed it into the air.
That made the freezing day worth it!