Nike Revolution 6 Next Nature, size 23cm. Retail price: 6,600 yen. Purchased from the official NIKE online store. I bought these for my child who wears the Revolution 7, but the 6 seems to have a smaller fit. Since it would cost shipping to return them, I'm putting them up for sale. They are new with tags, only tried on indoors. Thank you for your understanding. ☺︎