Since 1861, Hermann Oak has been tanning top-grain leather right here in Missouri. This St. Louis-based company prides itself on its slow and careful tanning process. A process that produces the finest top-grain stamping and tooling leather in the world. We are proud to be one of the largest distributors of Hermann Oak leather and to offer their leather by the square foot, the piece, the roll and in pre-cuts. Learn more about Hermann Oak and different ways to buy here.