I think the questionable costuming choices in this "Exciting Comics" cover from 1940 pretty much speak for themselves, but you have to credit the guy in purple for remembering to include a reservoir tip:
And I'm not sure whose pleasure that robot is ribbed for, but no matter what I'm glad to see that even in 1940 they put safety first. You can have your Y2K era leather-clad Bat-heroes; for my money, latex is always your best bet.