The mechanical counter-pressure spacesuit is not a new idea. Physiologist Dr. Paul Webb introduced the concept in the late sixties and developed a prototype in the early seventies. It was a great idea that came before its time, in my opinion; advanced materials that could exert the necessary pressure on the skin were not available then. In addition, the wearer needed help getting Webb’s prototype suit on and off (as do astronauts donning and doffing existing spacesuits), which results in expensive downtime for astronauts. A really practical BioSuit would be one the wearer could don and doff herself in, say, less than ten minutes.