Found this article on bio suits.
This is a very different spacesuit. It is not pressurized by air inside but the fabric produces pressure directly on the body. Now this has one major advantage if applied to a shapely female astronaut, think Seven of Nine. This suit by necessity clings very close to the body.
It has secondary advantages too. In that kind of suit an astronaut can move much more freely and with less effort than in the traditional space suits which are like blown up balloons and the astronaut has to fight the resulting stiffness with every move.
Introducing Dava Newman
NASA - Building the Future SpacesuitDava Newman is professor of aeronautics and astronautics and engineering systems at the Massachusetts Institute of Technology (MIT).
For the past dozen years, I have been working with colleagues and students here at the Massachusetts Institute of Technology (MIT) and with collaborators in various disciplines from around the world to develop a new kind of spacesuit. My hope is that the astronauts who some day walk on the surface of Mars will be protected by a future version of what we are calling the “BioSuit™.”