The size is 7. It should fit those who wear a size 24 to 24.5 cm, but please use this as a reference as it may vary from person to person. Waterproof function. The natural material is dyed black, so there are some areas with slight color unevenness from the beginning. I tried them on once at home. I have stored them at home, so please understand this. I will ship without the box. If you need the box, it will be an additional 300 yen, so please comment beforehand. Price is not negotiable. Color: Black