This is a White Nike Seattle Mariners Jersey that has been hand signed by Julio Rodriguez. This jersey is Size XL. This item has been certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof sticker. Beckett Authentication has recently changed their physical certificate card policy where they no longer match their tamper-proof sticker with a physical certificate. If the item features a Beckett Authenticated QR Code, the item does NOT come with a matching certificate. A certificate can be printed on Beckett's website for the matching authentication number.