SKYLRK Justin Bieber POP UP HOODIE L New Of course, this is authentic. As a general rule, I will not provide copies of receipts, etc., as it is troublesome. If you are not satisfied, you are welcome to have it authenticated yourself. I will block inquiries asking for confirmation. You don't have to buy it if you are not satisfied. To prevent item substitution during shipping, I may take a "video." Thank you.