Koisa

Koisa refers to a type of traditional Japanese footwear. These sandals are characterized by their wooden sole and fabric straps that go over the foot. The sole is typically flat, though some variations may have a slight heel. Koisa are often worn with traditional Japanese clothing such as kimonos or yukatas.

The construction of koisa involves a carved wooden base, usually made from paulownia wood, which is lightweight and durable. The upper straps can be made from various materials, including cotton, silk, or synthetic fabrics, and are often designed in simple, functional patterns. The design allows for ventilation, making them suitable for warmer weather.

Koisa are similar to other Japanese footwear like geta and zori, but they are generally considered more casual. While geta are known for their elevated wooden soles with two "teeth" and zori are flat-soled sandals often made with straw or cloth, koisa have a distinct, often simpler wooden base. They are comfortable for walking short distances and are a practical choice for everyday wear in certain contexts. The term "koisa" itself might be less common in broader international discussions of Japanese footwear, with terms like geta and zori being more widely recognized.