Under Lock and Key (1995)
Like every good women-in-prison film, most of the cast here are women. This one is particularly good as they seem to get naked at the slightest provocation: sometimes unexpectedly and sometimes when the prison doctor says, "Please get undressed." Thank you. Unfortunately, several of them break out of prison and things get boring for a while as they battle against the evil drug-dealer Carlos. Then we find out that he also "is a fashion designer on the side" and they bust in on his fashion show, complete with runway models, and run amuck.