Suit joint articulation was always the big bugaboo for designers. Full hard-suits seemed to be the way to go as far as a solution. See “US Space Gear” (A.D. Kozloski) for much more on past experimental hard-suits, or go to the Smithsonian Air Space Museum site and start looking up suits RX-4, RX-5, AX-2, AX-5.
Here’s a taste:
