Colorful Pet Backpack for Small & Medium Sized Dogs Super cute backpack for Small or Medium sized dogs. Let your pet carry it's supplies for you! Made of a super ventilated cotton material.Easy to put on and remove.Comfortable and durable.; Adjustable for dogs with neck size 9-15inch (24-38cm) & body grith 16-28inch (40-70cm); * Color: "Flower Spring"