Koba Lab out of the Tokyo University of Science have shown off a 9kg robotic suit that is powered by a pair of pneumatic artificial musics on the back, which are made by industrial equipment maker Kanda Tsushin.
The suit is pretty much powered by air, and when pressurized with air using electrical components from KOA Corporation, the lightweight, loosely-woven PET tubes contract, where they then provide support to the user's back, shoulders and elbows. The legs are left out for now, as the second person to don the suit noted his legs felt the weight.
You can really see the pressure being lifted off their bodies when they enable the pressurized air flow. The demonstration used 50kg of rice, in five 10kg bags. All I need now is a pair of Google Glasses, a Wi-Fi connection, and a love of red heads and I'm close to being Iron Man. The scotch part I have down, and I can grow a goatee if I really wanted to - Robert Downey Jr, watch out. Check the source for the video.