A not unrepresentative piece of clothing for cat people. Think of trying to make something similar for dog people, or note the absence of "sexy doggie" or "sexy puppy" costumes on Halloween, and it drives home how uncool dogs are. They've been over-bred for neoteny (or infantilization), while cats have been allowed greater freedom to mature.
Great touch on the back. "I strut right by with my tail in the air."