This large backpack is made from a durable American cowhide leather that increases in character as it gets older. The leather is of American origin, then expertly tanned in Italy using an eco-friendly process known as vegetable tanning. Once returned to the U.S. this leather is then handcrafted by our craftsmen into the bag you see here. All our hardware and zippers are made of solid brass with a gun metal finish that resists corrosion. At a lightweight 3.2 pounds, it still has an easy to clean yet durable American made bengaline twill lining. This level of quality will certainly stand the test of time.