12.75" pattern Constructed from the top 5% of all available hides Same game-day patterns of the top pros in baseball. Limited Editing Olympic Country Flag Series. Constructed from Rawlings’ world-renowned Heart of the Hide steer hide leather, Heart of the Hide gloves feature the game-day patterns of the top Rawlings Advisory Staff players. These high quality gloves have defined the careers of those deemed “The Finest in the Field,” and are available to elite athletes looking to join the next class of defensive greats.