The PetAmi Dog Cat Backpack Carrier is an expandable pet carrier that is perfect for small or medium sized dogs and large cats. This backpack carrier features a well ventilated design for optimal airflow, three-way entry for easy access, and a zip up mesh window for more headroom and visibility. The thick, cozy sherpa lined bedding provides a comfortable and safe environment for your pet. The backpack carrier also comes with a safety strap and buckle inside to secure your pet and prevent escape.