After looking at some of the pictures you posted I like the more modern 2000 issue. It looks like it is lighter and can compact down very easily. The 1990's version one is a nice second choice.

They call them "kapoks" becuase in earlier times they used the fibers of the kapok tree also called ceiba to make the fill of the sleeping bags.Also it was used in life jackets back in WWII.Treesuit wrote:PanzerDivision666,
After reading you description it almost sounds like you have a "kapok" or heavy duty mountain bag.
The BURTON-DIXIE CORP made the Bag, Sleeping Arctic, M-1949 .PanzerDivision666 wrote:
Contract N 288s-12759
BURTON-DIXIE CORP.
Newark,N.J.