A portable hammock-style chair. Chammock weighs just 9.5 oz. and is about the size of a book when folded. Tested to 10,000+ sits @264 lb., it’s made of ripstop nylon and comes with carabiners. It also offers optional tree-friendly straps.
True to its name, Hummingbird Hammock’s main product is an 8’x15′ sheet of ripstop nylon that has a capacity of 1000lb. It can probably carry six adults at once. You might not want to make it sway though.