Patagonia's Pack In Pullover is one of our favorite lightweight insulators intended for cold treks and weekend camping trips, and it looks good enough for brisk days in the city. Its stretchy shell moves with you on trails and roads, while the DWR-treatment fends off light moisture like spring showers and even snowfall. With the 1/2-zip zipped up, the hood ensures solid coverage when the campfire isn't enough.