Vegetable tanned leather refers to the tannage, or method of tanning the cowhide into leather. Vegetable-tanned leather is made using a special process that harnesses the power of natural tannins. These are found in organic materials like tree bark to add a unique look and feel to the animal hide

Vegetable tanning or veg tan as it’s sometimes called, is one of the oldest methods of tanning known to man. It has literally been around for centuries. But less than 10% of the world’s leather is tanned this way today.
What makes vegetable tanning so unique is it allows us to use thicker leather and results in more body and character – perfect for bag making. Vegetable tanned leather also tends to age better and develops a rich patina over time. And it has that awesome classic leather smell.