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 😬

they were basically fiberglass coasted with Teflon.
not plain fabric. 
 A fiberglass suit that won’t crack and leak under vacuum? 
Sure 
 obviously you are an experienced materials scientist lol

if you dont know about a subject its best to just keep quiet. 
 Extreme cold in space will cause the fiberglass to crack, be quiet, you moron. 🤦🏼‍♀️ 
 pro tip

human also freeze to death in the extreme cold of space.
which is another reason the suits are heated 😘

people are smart.
if you're argument is "space suits are impossible" you're gonna have a bad time. 
 Heated with what? Batteries?
The surface of the moon is -280F.
You have to wear a battery pack the size of a car! 😂 dumbass troll 
 They were rubberised fabric (neoprene / latex coated and impregnated if I recall) and operated under pressure. Ie. a pressure suit and so by design had to be airtight to maintain the internal pressure on earth or the moon. Hence they worked equally well under water.