These slippers are fire Rescue lighted. They are a type of shoe that is used to put a person out of business because they can suffer a crash and go up in flames. If someone steps on the soles of these shoes, their story will be told on every news program possible. This is one reason we make them so comfortable for the outside world. The Giuliani effect- making them narrow enough to fit inside but wide enough to fit for impact with something heavy- makes these slippers fun.