Forty-five years in the making, Patagonia finally built a sleeping bag. Based on Patagonia founder Yvon Chouinard’s original design that he only built one of for himself, the Patagonia 850 Down Sleeping Bag is built with the same durability and thoughtfulness you’ve come to expect from everything Patagonia. Each of the minimalist bags is made with ultralight nylon ripstop Pertex Quantum fabric, featherweight Houdini fabric and overstuffed channels with 850-fill-power Traceable Down (tracked from farm to factory) that’s easily accessible through a center-front zipper. There’s also a low-profile hood that fits security around your head and shoulders and a custom foot box that’s fully baffled and designed to eliminate dead space while still giving you room to move. The 850 Down Sleeping Bag is available in two separate temperature ratings (a 30°F / -1°C option or a 19°F / -7°C option), three size options (regular / short / long) and a number of different colorways.