Japanese socks are often referred to as "tabi" socks. They are a traditional type of Japanese sock that dates back to the 15th century. Tabi socks are unique in that they have a separation between the big toe and the other toes, allowing them to be worn with traditional Japanese footwear such as "geta" or "zori".
Tabi socks are available in a wide range of materials, including cotton, silk, and synthetic fabrics. They have become popular around the world as a Japanese fashion style to combine with Western outfits too.