Expandable and foldable - this domestic animal is designed to expand the backpack and the area can be increased by 60 percent after the expansion, which fully meets your cat's activity need and reduces the anxiety and can easily fold it when it is empty to save space. M¨¹nm¨¹rk Nylon File around the cat carrying bag, provides plenty of breathability and visibility for your cat, and the foldable case also provides plenty of by protecting your cat from the wind and rain. . Ergonomic Design - Domestic Animal Backpack thicker and wider shoulder straps can completely reduce the pressure on your shoulders, and the waist buckle and the chest buckth can provide extra support to keep the bag fixed and provide comfort while moving! . Coronor and Safety - Cat Backpack Carrier has a double -sided pillow interior that can be used in winter and summer to meet the needs throughout the year, and the drop -resistant locking buckle can provide the of your cat. . APPROVAL CARRIER APPROVED - The size of this cat bag is 15.49.912.5 inches, most suitable for small and medium -sized cats and mini dogs. Most airlines meet the cabin luggage requirement, please check the airline requirements before traveling.