Hobson built his exoskeleton's legs from lengths of steel, anchored in steel-sole boots, and pneumatic cylinders that stretch from the foot mounts to a hip mount. External loads can be hitched to this steel mount, which connects to a work belt worn at the waist, and holds an air compressor and battery pack. Air flows from the compressor to the pneumatic cylinders via supply lines, elongating the leg pieces and lifting the weight. Eventually, Hobson plans to attach the upper body to the legs, and lift things with the arms as well. Learn more on his YouTube channel, the Hacksmith.