This Nike limited San Francisco 49ers black jersey has been hand signed by Jimmy Garoppolo. It is officially licensed by the National Football League and comes with an individually numbered, tamper evident hologram from TriStar Authenticated. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. This piece comes complete with the serial numbered hologram from TriStar Authenticated. Includes certificate of authenticity and hologram! Garoppolo's signature is guaranteed authentic through the TriStar hologram system.