RE: What vest?
RedHead® Bucklick Creek Turkey Lounger Vest
It makes its own seat that you do not even need a tree to sit against. You can even take a nap in it!
The only thing I do not like about it issometimes the straps break off from where they are fastened to the front. This happened to me twice. I try to turn and put my hand down on the seat part and turn my shoulders and pop off they come.
I have recently thought about going vestless and using the backpack also.