Bag for sleeping bag. Marked on outside "GREENE 965" This is part of the CANADIAN FORCES ARCTIC SLEEPING BAG SET. Extreme cold weather sleep system. Spec includes three seam reinforced sewing, brass zipper and teeth for strength and durability, mummy enclosure for added nesting and warmth, quality down interior fill with a removable cotton flannel liner, waterproof stuff sack and arctic hood. The full set also has two down bags that are good for three different seasons or even put them together for arctic conditions. It weights 12 pounds complete.