There was news of the new SpaceX space suit in Reddit and now a mention in Elon Musk's Instagram where he says:
First picture of SpaceX spacesuit. More in days to follow. Worth noting that this actually works (not a mockup). Already tested to double vacuum pressure. Was incredibly hard to balance esthetics and function. Easy to do either separately.
Question: What does "double vacuum pressure" mean in space-suit testing? How does one test a space suit to double vacuum pressure?
below: From The Verge's 08-Sep-2017 article Elon Musk shares another photo of SpaceX’s future space suits; Full-body this time. Credit: SpaceX/Elon Musk, original Instagram post.
The suits that SpaceX has designed are pressure suits, meant to be worn by astronauts while riding inside the Crew Dragon. They’re primarily needed in case there’s an emergency scenario during flight; if the spacecraft suddenly depressurizes, the suits will keep the astronauts alive until they can get to safety.
below: From last year's reddit post SpaceX suits look like they come straight from a scifi movie, appears similar to image in Musk's instagram post.