This bag has still a lot of advantages compared to a plastic crate. Already you can fold it and store it easily, which is a sacred comfort. Then you can wear it either with the handle is with lanyard to have both hands free to wear anything else. I picture that those who take their cat in public transport will find them. At home, the bag serves as my hut kitten. I have installed it under a chair, he will take refuge when I scolded.
Note the presence of a small leaves and the ability to open the door and secure with a set of magnets. Certainly useful for small dogs.