Removing scents from clothes

Y'all, I've done this a lot, and I've usually had good luck with washing/soaking with defunkify, vinegar soaks, washing a few times and hanging outside.

I have one item right now that I got used, and supposedly "new without tags" but OMG I have washed it 3 times. It has soaked in vinegar. It has soaked in OxyClean. It has soaked in Defunkify. It has been sprayed with unscented febreeze. It has hung outside for 4 or 5 days. It still absolutely reeks like someone soaked the whole damn thing in perfume.

I absolutely can't wear it, I can barely stand to be in the same room with it.

Before I just give up, any other ideas? The vinegar seemed to have helped the most, so I guess I could do that again, but I just, I don't understand how people can stand this much scent around them all the time.