Image not working. DON'T DO THIS TO ME MANNNNN.

WAIT I found it. I think you're probably right.

- Tilius

Pretty obviously Catwoman. Since her heels have been discussed as being weapons, to therefore make it not terrible and dumb that she is wearing heels.

Which it still is.

A WOMAN'S BOOT! IT MUST BE THAT FEMALE CHARACTER WHO HAS BEEN CONFIRMED AS NOT APPEARING IN THE MOVIE AND FOR WHOM WE'VE ABSOLUTELY NO EVIDENCE TO SAY OTHERWISE, EVEN THOUGH THERE'S ANOTHER FEMALE CHARACTER WHO WEARS THAT EXACT SAME PAIR OF BOOTS! IT MAKES PERFECT SENSE!

It's obviously Batman's.

He just vants to be fabulous.