According to Fast Company, cats wearing kimonos are taking over Japan. Key quote:
Yes, friends, cats wearing kimonos are having a moment in Japan, much the same way cats as pin-ups and Quokka selfies sparked crazes in other parts of the world.
It turns out you can buy cat kimonos on Amazon. In case you don't want a kimono for your cat, they also have hundreds of doggy dresses for sale, most of which can fitted to your cat.