I was watching the final episode of the current series of Merlin with my wife last night, when it was remarked that one of the characters seemed to be practically naked in comparison to the others.
The main cast were joined by two new characters, Tristan and Isolde (yes, I know...), for the final two episodes, and these two participate in the final, epic battle.
In this battle, Arthur and his knights are wearing chainmail, the bad guys are wearing studded leather and Merlin does not engage in physical combat (he's a fucking wizard! They're doing it wrong if they have to enter melee).
Tristan and Isolde are not so well armoured. Tristan wears a long leather coat and leather top, so is at least making the effort. Isolde looks like she's just gotten back from a run, and didn't have time to change (see image below).
In fact, I'd say that the costume designer for the series really could not be bothered...
So, we talked about this for a little while, my wife and I, and I recalled something I'd seen awhile ago, a blog called Women in Reasonable Armour, which I would recommend to anybody looking to visualise a capable and competent female fighter. It covers several genres.