Wilson A1500 KP92 YAK Outfielder's Throw Baseball Glove (12.5-Inch) ECCO YAK Leather - The foundation of lightweight leather footwear, Yak is 3x stronger than cowhide, allowing it to be skived thinner, producing a lighter glove. 2X Palm Construction - A thin, strategically cut piece of leather is palced between the palm liner and outer shell, providing maximum pocket stability and quicker break in. Pro Stock Patterns - Exclusive hand designed patterns continuously improved by Aso-san and the Wilson Advisory Staff year after year. Low Profile Heel - Lower profile heel makes the glove more flexible, opens up the palm and the pocket, and makes the glove more forgiving on bad-hop grounders.