Meet the REST: one of the most compact foldable seats we have seen. You can put it in your pocket and take it with you everywhere you go. REST provides you with a foldable seat when your body needs some rest. The folding and unfolding process is very easy. The leg is adjustable from 55 cm to 83 cm and supports up to 130 kg (it can be extended by pulling the lowest part and turning the top slider and bottom at the same time in opposite directions).
REST looks super compact and portable. Depending on how the final product performs, it could be a lifesaver for folks who hate standing for too many consecutive hours. You can give this project a look on Kickstarter.