I use one like this. It is light and I can put it in the side pockets of my backpack fine. Mine is Browning label but this one is like it. I have not tried the swivel ones like this, but they may be great.

http://www.amazon.com/ALPS-Mountain...&keywords=three+legged+folding+chair

I do not entertain hypotheticals. The world itself is vexing enough. -- Col. Stonehill