6 METHODS OF CARRYING : Hand Carrying, Adjustable Shoulder Strap Carrying, Cat Carrier Backpack, The Top of Suitcase, Car Seat, Under the Airline Seat. This pet carrier is perfect for long trips, car rides, airline, vet visit, and etc. 3 SIDES EXPANDABLE & 5 ENTRANCE - This airline approved pet carrier can be extended on 3 sides. At the same time, the cat cage is also designed with 5 entrances. Easy to fold down and unzip 3 sides to create extra room for your pets to move around, reduce anxiety and discomfort during travel. MAKE DRVING SAFER: The cat carriers could be strapped in front car seat firmly by safety belt and shoulder strap to keep your pets restrained for safety while driving; The pet carrier will prevent pet to interfere with your driving and cause an accident. MULTIFUNCTIONAL CARRIER - A side pocket with zipper will help you to organize small accessies, such as pet food, pet toy, container of treats, snacks, calming collars, pads etc.