I’ve looked deep down the rabbit hole of this topic and there are definitely reps. I’ve seen forums on Reddit of people showing off their reps as well. Check it out when you get the chance! The main giveaway is what the tag looks like as well as the zipper.
It is the wastelander grim hoodie! They’re sold out, but I know the guys who started it and they said they’re going to restock it with a few tweaks sometime in April!