The great thing about the CamelBak is that I don't need to worry as much about hydrating before running. Yes, I still need to drink before I head out, but without the CamelBak I had to hydrate for 90 minutes or more before running, else I would be very thirsty when I was done. Now, I can get by with only maybe 20 minutes of pre-drinking, and can drink while running. Nice.
The air was very cold on my ears. My UW overshirt had a hood but it was pretty thin to the wind. Next time I need to wear a stretchy hat.