Wool Sleeping Bag
The wool sleeping bag was originally made of knitted wool cloth, which was replaced by a woven, 21 1/2-ounce napped wool cloth because of the extreme shrinkage occurred when laundered. It was mummy-shaped and provided with a 30-inch heavy slide fastener. 
- QMC spec PQD No. 273
- 1943-08-30: Revision C
- 1943-06-21: Revision B
- BAG, SLEEPING, WOOL
- The design was altered so that the bag could also be used inside the mountain sleeping bag.
- The slide fastener was lengthened to provide a closure at least 70 inches long.
- ↑ https://hdl.handle.net/2027/mdp.39015031821443?urlappend=%3Bseq=154