They've been experimenting with this on the Russian side of the station for years. Their version is semi rigid and creates low pressure around the astronaut's l

They've been experimenting with this on the Russian side of the station for years. Their version is semi rigid and creates low pressure around the astronaut's legs so the natural pressure in the body and the air pressure of the ISS on the upper body and face squeeze the blood into their lower extremities away from where it pools naturally in micro gravity. http://www.astronautix.com/c/chibis.html http://www.astronautix.com/c/chibis.html https://blogs.nasa.gov/ISS_Science_Blog/2015/06/02/rubber-vacuum-pants-that-suck/ https://blogs.nasa.gov/ISS_Science_Blog/2015/06/02/rubber-va...