Maybe you're looking for something to throw on quickly for a chilly fall hike, or maybe you're looking for something to throw on with about four other things on frigid commutes. For whatever kind of cold weather you're facing, you can count on the Patagonia Women's Bivy Vest. Its 600-fill recycled down insulation keeps your core warm no matter what the thermostat says, so you'll stay cozy whether you're rocking it as an outer layer during transition seasons or layering it when winter comes. Battle inclement weather with an outer fabric that's treated with DWR (durable water repellent) to shed light rain and snow, and a zipper that's covered and secured with metal snaps to ensure that the cold stays out. Microfleece-lined hand pockets give your hands a welcome escape from the cold.