The Fairtex HB3 Extra Large Leather Heavy Bag is a heavy duty, highly durable punch bag. The extra large design provides a more imposing opponent to hit while building more strength and power to the upper body. It's constructed from high grade Thai leather and non nylon at the top with heavy duty water resistant and non-tear nylon lining with nylon web straps. Extra-large design to provide a more imposing opponent to hit and build more strength and power to the upper body. Without them, there's a higher chance of damaging your bag.