The European Space Agency (ESA) SkinSuit that I’ve worked on is composed of a bi-directional elastic weave. Astronauts on the ISS can painfully grow up to 5-7 centimeters in height. The SkinSuit was designed to. essentially mimic the effects of gravity by replicating adequate mechanical loading on the skeleton and thus preventing the lengthening of the spine. With a force close to that felt on Earth, the suit effectively squeezes an astronaut’s body gradually in hundreds of stages from the shoulders to the feet to help prevent bone loss.