First developed for and issued to Mountain Division troops in WWII, this U.S. Military Surplus ECW Sleeping Bag is now available to keep you warm and dry on camping trips. Tapered "mummy bag" design is filled with down and polyester fill for maximum warmth. Sewn with innovative offset stitching which alternates inside and outside stitches to an inner layer to avoid creating an opening cold can penetrate through. Water-resistant shell with dependable down fill. Rolls up tight with attached tie straps for easy packing and stowing.