@catdad thanks! lol, I ain't no operator! I'm a cyclist! I used the fabric left over from my hammock, and 30' of webbing. I kinda stole the idea from Molly Mac Gear, then designed it for my own needs and materials at hand. It helps to tear a couple of old packs apart - to cannibalize old parts and to figure out construction. http://www.mollymacgear.com/