Patagonia really delivered for space-efficient backpackers and belay-savvy climbers with this jacket, because the Down Sweater Hoody is specially designed to stuff into its own interior chest ...

Patagonia's new Hi-Loft Down Sweater, with wider tubes stuffed with more goose down, is halfway between a sweater and a traditional down jacket. It should buy you an extra 10 degrees of warmth ...