The Bespoke Heavy Bag is made from a high-quality engineered leather cover that is exceptionally strong and durable, ensuring maximum results. To further enhance its durability, the bag features an inner-weave, cross-stitched canvas lining. The bag's 2.1" poly rubber interior liner not only provides a less dense striking surface but also helps to maintain its round and cylindrical shape even after intense training sessions. Overall, the Bespoke Heavy Bag is a heavy bag that is designed to withstand rigorous training and provide reliable performance.