The 2020 Professional Reserve Collection includes Edwin Diaz's Game Spec ball glove. Edwin Diaz's on-field model features a 12” Dual Hinge web with a deep/wide pocket and an index finger sleeve, built to hide your pitches. The leather is Premium Reserve™ USA steerhide that is professionally tanned in one of Japan's oldest and most exclusive tanneries. Professional grade rawhide lace is tanned in the US and is the strongest on the market. Rolled leather welting and binding provides durability and improves break-in time. The plush sheep wool shearling fur wrist liner provides players with pro-grade comfort on the back of the hand.