This iridescent hat, just like the one worn by Marty McFly in Back to the Future Part II has been personally hand-signed by Michael J. Fox during his autograph signing with Celebrity Authentics. Complete with color shifting fabric this adjustable size hat ships affixed with the Celebrity Authenticsserial-numbered and tamper evident Authentication Hologram and includes Celebrity AuthenticsCertificate of Authenticity featuring a picture of Michael signing hat. Please note: with multiples signed by the actor, a sample photo is used from stock to represent what you will receive. Exact autograph size and placement may vary.