Why can't you just wear an oxygen mask in space? Why do you need a pressure suit?

would it still stick to your body?

Try to put your vacuum machine hose up your anus. Thats how space without a suit feels like!

Space is a vacuum retard

if you're too cold your body will just shiver

if you're too hot you'll sweat, which will instantly evaporate and cool you down

did you skip grade 8 biology or something?

ur gonna shit under 1.01x10^5 pascals of pressure, it ain't good

Skin might be airtight but you'll swell up from the pressure difference unless you have a mechanical counter pressure suit.

okay so you swell up, so what

uhh... yes it is

no, the gravitational force of attraction between your mass and the mass of the vapor is negligible.

no it isn't

Your lungs are not meant to deal with a pressure differential of >=1 atmosphere. They wouldnt be able to contract to get the CO2 out if you just had a mask or helmet on. Among other problems of being exposed to vacuum. Not to mention the extreme temperatures out there.