Our briefcases are made with U.S.A native cow/bison leather that have been tanned in the U.S.A.  They are fully lined in 100% polyester 600 Denier Cordura brand fabric which is very strong, durable and waterproof, made in the U.S.A.  All of the copper/brass rivets are made in the U.S.A.  The inside zipper is made by Lenzip Mfg., U.S.A.  All of the solid brass hardware are sourced in the U.S.A.