An essential to have. Whether it's for training yur dog or playing games, you should always have treat on hand. The treat bag is just perfect. Its nylon linning is separated into 2 compartiments to put 2 type of treats that will make your doggie happy. On the side you have compartment to put a roll of poop bag. The front pocket is spacious enough to old a cell phone. In addition, the bag can be worn 3 different ways according to your tastes. You can put it on the waist or on your shoulder with the strap that can be remove. you can slide your personal belt or the belt of a fanny pack .