This is the Nike SNDR. It's a US women's size 11, which is equivalent to a US men's size 9. In Japanese sizing, it's about 27cm. I usually wear 27cm shoes, and these fit perfectly. They have been worn, so there are some scratches and dirt. That's why the price is set as it is. This is a women's product, so those who usually buy men's sizes are unlikely to be able to wear anything smaller than a US size 10.