PRO STEER HIDE: Japanese tanned professional grade Seto leather made from strong USA steer hide. * PRO FIT STEER HIDE: Professional grade cowhide lining, built soft for comfort, but strong for the rigors of pro level play * 100 LB: Professional grade USA-tanned rawhide lace tested to a tensile strength of 100 lbs. * 11.5" pitcher pattern * Split solid web with open back, Index Finger sleeve