I am planning to make a DIY z-liner from a poncho liner. Having never seen the factory version I am sort of shooting in the dark. A couple of questions...
1. Will a single layer of poncho liner give any useful insulation value? Or should I go right to a 2 or 3 layer version?
2. Will a poncho liner in the pockets have enough 'stiffness' to stay in place. It will be held in place at the top with velcro but pretty 'floppy' otherwise.
I've seen some ideas for connecting the two sides of z-liner together through the opening in the bottom of the pockets but was hoping that won't be necessary.