Ugg, the dreaded winter season booty chill. Corsair, girl, what you need is some sort of spoiler attached to your jersey pockets on the back! Just channel that cold air right on by!

Barring that, if it's cool enough for a jacket, maybe you could find one with an extra long tail. That's what I've wished for on the fall commute, especially a softshell with a long tail and maybe pit zips. I'm not sure why softshells don't come with pit zips - maybe it would make them look too weird.

But that backside does get so chilly even while the front is a sweaty mess!