That idea is still good! It originally surfaced with the - ABOMINABLE SLEEPING BAG in 1980. The name and design were patented by RL Carter & Co of Colorado Springs. I have not seen a better design yet! I cherish two of them in BRIGHT HUNTER ORANGE.
For you capitalists, the patent was abandoned! See US73284858.
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Cliff Harrison PonderosaSports.com Horseshoe Bend, ID American Redoubt N43.9668 W116.1888
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