Corset?

[lizatagious]

I'm sorry if there's a thread like this somewhere, but I've been searching for awhile and done my research on all the clothing quests I could find. But I still can't seem to find this one article of clothing--a red women's vest with a black waist cincher corset. It's definitely not in the tailors' shops and as far as I know, not a reward for any clothing quest out there. Apologies, I don't have a screenshot, whenever I see someone wearing it they seem to skedaddle before I can get one. Any help at all is appreciated, I'm willing to go the distance for this corset.