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Soft suits also take forever to put on, they fight your every movement (making EVA work very fatiguing), and if you tear the suit skin you will die horribly in about 90 seconds.
When I say "fight your every movement" I mean "raise the energy expenditure to do a task by about 400%".
Disadvantage is they have to use low pressure so The Bends once again raises its ugly head.
Also people have a problem getting anybody to take it seriously A space suit is a protective garment that prevents an astronaut from dying horribly when they step into airless space.
This is why high-pressure space suits are called "zero-prebreathe" suits.
Disadvantage is they are monumentally overwhelmingly hideously encumbering like wearing a suit of medieval plate armor made out of solid lead. Semi-rigid space suits are a cross between soft and hard shell suits.
For what it is worth, the "Apollo Operations Handbook Extravehicular Mobility Unit", Revision 5, Table 2-I quotes the maximum leak rate of 180 cubic centimeters per minute at 25.5 k Pa.
Suits can be Soft, Hard-shell, Semi-Rigid/Hybrid or Skintight. This means they cannot be pressurized to the same level as the inside of the habitat module or the space suited person will be forced into a posture like a star-fish and be unable to bend any joints.
NASA astronaut always put on a transdermal dimenhydrinate anti-nausea patch when suiting up in a space suit, in case of drop sickness.
The chances of that are slight, but suffocating inside a helmet full of vomit is a nasty way to die.
Like all attempts to have it both ways, it means they have the draw-backs of both and the advantages of neither.