1.US issue Sleeping Bag Carrying Strap Assembly is made from olive drab (OD7) cotton webbing and allowes a sleeping bag to be carried on the M-1956 suspenders (See item MA138). A strap passed over each of the wearer's shoulders and through the web keeper on the suspender's shoulder pad. In order to stop the bag swaying about, two adjustable tie down straps, which passed around the sides of the wearer and attached to the loops on the suspender's front belt hooks. Also great for strapping any sleeping bag! Vietnam surplus. 2.listing also is for a Vintage US military surplus Intermediate Cold "mummy" sleeping bag. There are no holes or tears in bag. Zipper works great. Snaps to further seal the bag from the cold. Ties for rolling up to store. Down / Synthetic filled or Synthetic filled.