Description Snaps in the bag attach to the harness or collar. Waterproof Bottom: This dog backpack is made of waterproof fabric and the bottom is made of waterproof arm bottom material, which is stain resistant. Machine washable interior. Optimum Breathability, Comfortable Lining: Lightweight and sturdy, padded compartment, integrated laptop compartment, front and top handles, zippered pocket and adjustable belt buckle. Top and bottom zippers make it easy to fold the backpack. With the built-in leash, the dog wont break. Practical design: There is 1 entrance on the front of the backpack, which is more convenient for dogs to enter and exit.