Outdoor Research Women's Ergo Down Sweater:
This streamlined insulator has enough warmth to keep you moving in the low digits. It is lighter and less bulky than a typical down jacket, allowing it to function as a layer under a shell. It compresses down into a stuff sack, taking up about the same amount of space as a one-liter water bottle.
Sat-Sun: 8:30am-5pm PDT