1、[PU Leather Fabric] The pet carrying backpack is made of premium PU leather fabric, waterproof and scratch resistant, comfortable to touch and easy to clean. 2、[Breathable] Cat carrying backpack with highly breathable mesh fabric on the side, multiple round holes on the front and side for comfortable breathing. 3、[Large Window] This cat backpack carrier is designed with a large zipper window on the front, with a wider field of view, also convenient for you to observe the state of your pet. 4、[Lightweight And Portable] The back side is made of breathable mesh fabric, which fits your back and is not stuffy. Wider shoulder straps, lightweight design, more portable. 5、[Large Space] Pet travel backpack with lots of space, easy for pets to get in and out, suitable for most puppies and cats, perfect for shopping, walking with your pet, etc.