【High quality material, excellent design】The outer material of the dog bag is high quality Oxford cloth with PVC coating. The inner liner is made of durable nylon and can be removed completely to empty debris, wipe or rinse. Double stitching makes the pet training bag more durable. The zipper works very well. With a large fabric tap on the zipper head, even large hands can easily hold it. This dog training therapy bag is durable. 【Adjustable drawstring for easy access】Simply press the drawstring lock and pull to release. The drawstring allows you to open the opening as far as possible, so your whole hand fits inside the dog treat bag for quick and easy access to treats. You can quickly reward your dog for good behavior and performance. When not in use, you can completely close the dog treat bag to prevent dog’s nose from trying to squeeze through. With the training bag closed, you can jog, run, bend or squat without anything falling out. Large Capacity Snack Bag] The main compartment