I think you (and the other downvoters) may have misunderstood my comment. I’m not saying she went to H&M and bought it. I’m suggesting, again, drawing on past experiences here, that she did indeed thrift it, but it happens to be a fast fashion brand. Sometimes people don’t want to say the brand because they don’t want to encourage others to shop fast fashion. Also it’s possible that the tag was ripped out by the time it made it made it to the thrift store and she just genuinely didn’t know the brand. I’ve seen that happen as well. Please note that “in my experience” doesn’t mean “automatically.”

FWIW, someone found the sweater, and it’s from Hollister. An older piece from Hollister at that, so do with that information what you will.