Dog Backpack for Outings: This portable small backpack is perfect for dogs, also comes with a leash for easy control. Self Carrying Design: Dog Backpack Harness with Leash is designed for dogs to carry on their own, it adds an element of fun and independence to their outdoor adventures. Adjustable: Pets Self Carrier Bag comes with adjustable straps for comfortable fit on your dog. Waterproof: The backpack is designed to be waterproof, rainproof, ensuring your dog's essentials are kept dry during rainy outings. Perfect for Outings: This dog backpack with bulid in pet treat pouch dispenser is a must have for your pet's outdoor activities, ensuring they can carry their own essentials effortlessly. Size Chart: S Neck circumference: 26~34cm/10.24in~13.39in; Chest circumference: 28~40cm/11.02in~15.75in; Recommended weight 4~7.5kg M Neck circumference: 35~58cm/13.78in~22.83in; Chest circumference: 41~65cm/16.14in~25.59in; Recommended weight 8~15kg Package Includes: 1x Pet Harness Backpack 1x Leash Note: Please allow slightly errors due to manual measurement and different monitors.