This Zay Flowers Autographed Baltimore Ravens Black XL Custom Jersey is an excellent piece of sports memorabilia for any Zay Flowers fan or Baltimore Ravens collector in your life! This Zay Flowers autograph has been guaranteed authentic by Beckett Authentication Services (BAS) and includes an ID number, verifiable on the authenticator's website. All autographs are backed by SportsCollectibles.com's 100% Authentic Guarantee.