Well, I would ask the seller if they have any papers to show that the items is theirs. Also if it is an item that you can go to a store that sells them. Then we would say you should go to that store and ask the staff to tell you if it is real and not fake or stolen. That would be our best recommendation to make sure that you don't get scam. Also for clothing if the price is too good to be true even if the closes were used then it is better to just look for another seller. We hope this has helped you and that this makes you feel safer selling on offerup.