The leather will withstand cuts, punctures and years of abuse, yet remain soft and rich to the touch. Each bag is made from top grain bison leather with a distinctive grain that varies throughout the skin, making each bag unique and gaining beauty with age and is carefully stitched to keep from leaking. It has an easy-to-use spout which allows you to add your desired fill with ease. The bottom is made of a water-resistant and anti-skid material to ensure stability.