These Vietnam issue nylon hammocks worked perfect for jungle environments in helping to keep the fighting men off of the ground. The damp environment did not lend itself well to sleeping on the ground in a feather sleeping bag. Most of the boys would use the poncho liner in combination with the jungle hammock to keep them high and dry. This particular style jungle hammock featured special elastic straps that were secured to the ropes that hold the hammock from a tree. These elastic strap work with a small toggle to fit into the grommets on the poncho(not included) The poncho could be positioned above the sleeping soldier to keep the rain off and also to stretch over a mosquito net.