865 Units in Stock Model : P688Patagonia Bivy Down Jacket - Glass BlueThe Patagonia Bivy Down jacket has a flexible nylon exterior that promises years of durable wear and lasting water resistance. The interior is stuffed with 100% traceable duck down that retains warmth in the coldest winter conditions. Both hand pockets are lined with a soft polyester jersey. A stand-up collar and drop-tail hem provides extra coverage from icy winds. Big on heat without the bulk, you can't go wrong with a Bivy.