Two young men, one with paraplegia (spinal cord injury) and the other with spinal cord damage play soccer wearing the Berkeley exoskeleton modules in Berkeley, California. The Berkeley exoskeleton is modular; weighs 27 pounds total and is adjustable to various sizes. The user has complete control on the steps and the commands are initiated and transmitted to the system computer via crutch mounted controllers. The speed varies with the user; however 0.5 m/sec has been measured. The battery allows for 4 hours of continuous walking.