Noah Webster's Dictionary (a.) Made of leather; consisting of. leather; as, a leathern purse.

Multi-Version Concordance Leathern (2 Occurrences) Matthew 3:4 And the same John had his raiment of camel's hair, and a leathern girdle about his loins; and his meat was locusts and wild honey. (KJV ASV DBY WBS) Mark 1:6 And John was clothed with camel's hair, and 'had' a leathern girdle about his loins, and did eat locusts and wild honey. (ASV DBY)