Cordovan also known as leather diamond.Special fiber tissues located on the hips of the horse. Cordovan fibers are carefully shaved out and picked up on the front and back of the leather, but there may be slight variations of cordovan fibers. Cordovan layers that come from a single horse are very few of the rarity and the method of harvesting, are also called leather diamonds, making it a strong, smooth and beautiful material used for items that require durability such as school bags and luxury mens shoes.