I get a sweetie back when taking long works with my day pack. And this chair is just what I need to cool down in and have a break. I would pack it up at night before sleeping at a camp site and walk out in the morning and stop for morning tea in this chair.
They are called Vibram Five Fingers. They have a fairly broad range. I personally have a pair made of a wool composite, have had for more than a year of regular hiking and gym use. The second most comfortable thing I've ever put on my feet and extremely durable.