The Rawlings(r) PROSCM41B Heart of the Hide(r) Gold Glove(r) Series Catchers Mitt is the same model worn by Mike Matheny and Sandy Alomar, Jr. and offers a renowned Heart of the Hide(r) oil-tanned leather construction for durability. Full-grain leather binding and lacing, along with the deer-tanned cowhide palm and finger back linings, help provide strength, comfort and durability.