Shell Cordovan, one of the world’s most iconic and sought-after leathers in the world, made only from the dense membrane found in the hindquarters of a horse. This leather is formed by a naturally inherited “callus” unique to the animal – these horses are not raised or killed for this purpose, which is what makes Shell Cordovan exceptionally scarce. Sourced exclusively from the Horween Leather Company in Chicago, it is celebrated for its smooth finish, rich luster, and unmatched durability, and no two straps are ever alike, making each piece as individual as the watch it accompanies. Lastly, each strap ages beautifully, developing a deep patina over time. Hand-assembled in the USA.As a natural material, genuine leather varies in texture, markings, and color, so your strap may look slightly different from the photos.