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View of the LM restraint ring. Cables in the lunar module hooked to the restraint rings on the astronauts' suits to keep help anchor them at the controls during LM flight operations. I'm not certain why LM restraint rings appear on a Skylab-era suit, unless there were some manner of tethers to restrain them during EVAs outside the orbital workshop.

Picture 2 of 2.

This is a rear view of the right-hand side restraint ring.