Here's a custom Bayside High School jersey that has been signed by Mark-Paul Gosselaar, who played Zack Morris, and added the inscription ZACK and the autograph has been authenticated by Beckett! These custom jerseys are made for the purpose of being signed and then framed, so this one doesn't have any official logos on it. This one isn't produced for wearing, and wasn't ever worn anyway, although it is a size XL! What a great pick-up for Saved By The Bell collectors! U.S. Buyers get free shipping! If I can answer any questions, please let me know! Thanks for looking!