This is the inner bag of the 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. Everything here was designed with durability in mind and will withstand very rugged conditions. This listing is for the INNER bag only.
As Is condition - these bags have seen use and are well used and will have some damage, but are repairable and useable, and a great deal at this price.