Here’s another one of my early illustrations, updated and improved, showing how to convert a US Army poncho liner into an under quilt.

In my early hammock camping days, I couldn’t afford a down-filled under quilt and I most often used a closed-cell foam pad when temperatures dropped. I still wanted  to try an under quilt with my Hennessy Hammock, so I started playing with a poncho liner.

The no-sew version works okay, but it’s difficult to seal the edges 100 percent. The sewn version is nice if you want to add some additional insulation, like a layer of Climashield® or other synthetic insulation.