Proof of what? Basic physics, that all you really need to survive in space is insulation, air, and force applied to the body surface? Look it up, I'm not spoon feeding you.
Proof that I hang around MIT and have seen their work on future space suits firsthand? No. I'm not going to post photos of work they aren't ready to share - just look up the ones that they have already posted. Took me literally one google search to find MIT sites talking about it, but it has come much further since the articles I have found.