This is an item which should not be showing up in the wardrobe.

There is a known wardrobe glitch with items showing up in there that should not be showing up, such as staff items like the Victoria Corset which is an item that was made for an NPC (Victoria).

Before people ask... Yes, there's plans to fix up the wardrobe. I know it's been a point of frustration for a long time now. I really want to address it, but I just need a bit more time to reach the point where I feel ready to tackle it all.