Pet carrier dimensions：12.4' L x 9.1' W x 14.6' H. Fits cat up to 8 pounds and perfect for 6 pounds cat. Please make sure measure your pet before purchasing. Our pet bag is suitable for most puppies, cats, and other small pets (do not fit large dogs). Backpack material: The main material of the backpack is canvas which is more transparent and breathable than other materials, Breathable& Comfortable - There are 3 holes on the front both side, Breathable Mesh for air flow, Sturdy and safe, easier to carry your pet to travel. Semi – sphere window ：Besides all the functions of the regular pet carriers, This Unique patent pending revolutionary semi-sphere window design, good for pet sight viewing . Add a unique function: The semi-sphere has two conversion mode，the plastic shell the backpack can be switched to mesh panel or removed for small pets. Portable: The design of the shoulder straps make travel more convenient and comfortable, and you can save more energy when you carry your pet on the bag and go out on a trip.