I recently found this amazing new buffalo hide that's both pliable yet very strong.
The No. 4313 Rye Whiskey Buffalo Hide has chunky hardware, beefy strap, thick stitching: it’s the acme of American hand-made satchels. A leather piece this sturdy not only requires hand-stitching, but several copper rivets that make this bag last the long-haul. Two heavy-duty buckles finish the last satchel you will ever own. Adjustable strap and two of our inserts to maximize your internal capacity are included, optional monogramming. Approximate size 16" x 10" x 3.5". Handmade in the USA and guaranteed for life.