Majestic Cool Base on-field style jersey. Everything is sewn on. Hand-signed in silver paint pen by Charlie Blackmon. Includes an individually numbered tamper evident hologram Autographed jersey Officially licensed Fanatics Authentic. This jersey has been personally hand-signed by Charlie Blackmon. It has been obtained under the auspices of the MLB Authentication Program and can be verified by its numbered hologram at MLB.com. It also comes with an individual numbered, tamper-evident hologram from Fanatics Authentic. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud.