【RECOMMENDED FOR 15LB < SMALL DOG & CAT < 18LB】This pet backpack carrier is specially designed for small dogs and cats weighing between 15 pounds and 18 pounds, fitting their body shapes perfectly. Before purchasing, please accurately measure your pet's size referring to Size Chart (Figure3) to ensure they are comfortable in the backpack and have a worry-free journey. 【PRECISE SIZE FIT】Four sizes are provided to meet diverse needs. The recommended weight of the front dog backpack carrier is for reference only. Before purchasing, be sure to measure your pet's BACK LENGTH and CHEST GIRTH first. If the corresponding sizes of the two measurements are inconsistent, choose the larger size to ensure your pet's comfortable travel. 【TWO WEARING METHODS】The dog backpack carrier can be worn on the front or back, catering to your various scenarios. When walking outdoors with your dog or cat, you can choose as needed to shorten the distance,this dog travel bag keep it close to you and make it feel secure. 【COMFORTABLE & BREATHABLE】The external leg and tail designs of the dog carriers for small dogs make pets safe and comfortable. The super-large open area and air mesh lining ensure good ventilation without stuffiness, allowing pets to move freely without any restraints. 【SAFE & EASY TO PUT ON】Thepet carrier for dogs andcats are designed with hooks, zippers and elastic openings, making it easy for you to put your dog inside indoors. The quick-release buckles at the end of the straps enable one-hand, fast installation, ensuring safe and convenient trips for your pet. InspackPet Backpack: A Must-have for Pet Travel：If you want to take your small dogs and cats enjoy the outdoors, the INAPARK pet backpack is your best choice. Before purchasing, measure the back length and chest girth according to Figure3. There are four sizes to fit different body shapes. If there is a size difference, choose the larger one to ensure your pet's comfort. The hands-free harness has front and back wearing modes. You can switch freely outdoors to keep your pet close and feel very secure. The external leg and tail design of the backpack, combined with a super-large breathable area, allows your pet to stretch freely. With convenient hooks, zippers, elastic openings and quick-release buckles at the end of the straps, you can install it with one hand in seconds, making travel convenient and safe. It can be used for cycling, hiking and camping. It can steadily carry your pet and start a happy adventure. Its fashionable appearance can also capture cute moments of your pet. INAPARK is customer-centered. If you have any questions, contact us within 24 hours to enjoy a high-quality shopping experience. Hurry up and take it to set off with your pet!