This game used size 7 1/2 blue hat was used by Mets pitcher Erik Goeddel as the Mets played the Rockies on July 30, 2016. This hat features the Mike Piazza number retirement ceremony patch on the side. Do not miss the opportunity to own this unique piece of Mets memorabilia. The Mets net proceeds from memorabilia sales benefit the Mets Foundation. For more information about the Mets Foundation and/or Amazin' Memorabilia, please visit mets.com/gameused. The availability of items varies, but for questions about this piece or different numbers, players, colors, or sizes please contact Amazin Memorabilia, The Official Source for New York Mets Game Used and Autographed Memorabilia, by emailing firstname.lastname@example.org or by calling 718-559-3144. An MLB Authentication Program tamperproof hologram is affixed to each piece of Amazin Memorabilia. For more information on this item, visit http://mlb.mlb.com/mlb/authentication/and enter the hologram listed above.