Originally Posted by Bathead
There's a panel in one of the earliest Batman comics (like in 1940 or so) where Batman is apparently unhurt after being hit by a bullet, and he explains that he is wearing a bulletproof vest. So, he's had bullet resistant armor under that unarmored looking cloth suit since pretty much the beginning.
Also agree whole heartedly with your second paragraph. I'm quite positive a major movie company, with all the financial backing they would have, could quite easily come up with a viable comics style suit. Those who say they couldn't have no imagination.
I said he wears fabric armor in the comics. That's what I was talking about. The bulletproof vest he wears is still a type of fabric that is more resistible against bullets and knives than regular fabric but provides the flexibility and fluid movements needed to be Batman.