This game-used jersey was worn by Isaac Seumalo during the 2017 and 2018 NFL seasons. It is officially licensed by the National Football League and comes with an individually-numbered Certificate of Authenticity and a hologram from Fanatics Authentic. To ensure authenticity, the item can be verified online using the Certificate of Authenticity's unique alpha-numeric code. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud