A 1963 USAF report describes work on an emergency “space suit.” It’s meant to be something that can be worn as a normal outfit and then zipped up at a moments notice in the event of a pressure drop. This includes a flexible helmet with a flexible “faceplate.” the end result looks like something out of a bad 1970’s pre-Star Wars disco-era sci-fi flick. Note, though that the actual test item is substantially less Giant Polyester Leisure Suit Lapels and more Cheap Plastic Poncho.