Nike React Infinity Run 4 27.5cm The running distance is about 400km, according to my training log. I think I've also walked about 150km, although I'm not sure exactly. It's said to have a durability of about 800-1,000km, so I think it can still be used. Please note that the soles have wear and tear appropriate for the running distance. I have included images, so please check them carefully before purchasing. I usually wear 27.5cm, but I felt it was a little tight. Therefore, those who usually wear 27.0cm might be better off. I plan to ship them in a different bag than the one they were purchased in. Thank you for your understanding. I will also consider a discount to some extent.