Tabi are a kind of traditional Japanese sock. They resemble regular socks, only there is a division between the big toe and the other toes, and the soles are usually thicker. Historically, Tabi are made of inflexible materials such as leather and cotton and have fasteners at the back due to its usage as indoor footwear, but modern Tabi also use stretch material. For socks with division between all toes use toe socks instead.