Features: Similar to a human backpack. This dogpack is for your dog to carry his/her own supplies and accessories while you go hiking. large enough to holding treats, toys, poop bags, and other daily supplies. Your Dog can Take Dog's Belongings By Dog Itself, it will generally behave better and feel happier. We recommend that you use soft tape to measure your pet to find the most suitable size. Measure the widest part around the abdomen, behind the front leg. Ideal for daily walking, outdoor travel, hiking, camping, training and other outdoor uses. Help overweight puppies load and exercise; Can also be used as a canine emergency kit for storing medications and other necessities. Package Includes: 1x Dog Self Backpack Specifications: Material: Plaid Cotton, Nylon Webbing Size: S/M S-Neck Circumference: 24-34cm/9.45-13.39in, Chest Circumference:28-42cm/11.02-16.54in, Applicable Weight:1.5-3.5kg(Approx.) M-Neck Circumference: 28-44cm/11.02-17.32in, Chest Circumference:32-52cm/12.60-20.47in, Applicable Weight:3.5kg-7.5KG(Approx.) Color: Blue/ Yellow/ Pink/ Green note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.