Slippers are a kind of shoes, the heels are completely empty, only the toes are in front, mostly flat-bottomed, and the materials are often quite soft leather, plastic, cloth and so on. The types of slippers vary according to the occasion and performance. For example, beach slippers are not made of cloth, but of plastic. This is because they are waterproof and easy to clean. The type of toe cap has also been specially designed, which is often called flip-flops, which is what we call flip-flops. But indoor slippers in winter, in order to keep warm, may use fluffy cloth instead of plastic, so that people can enjoy it better in the room. There are also anti-slip slippers for bathing and anti-static slippers commonly used in electronic factories and dust-free workshops. Slippers originated in Meiji era in Japan.