The Chairless Chair, an invisible chair that you can wear
Nick DeMarco

This wearable chair can offer relief to production line workers and allow for better posture while performing their tasks. (CNN) -- It's like a chair that isn't there, but magically appears whenever you need it. It's called the Chairless Chair and you wear it on your legs like an exoskeleton: when it's not activated, you can walk normally or even run.