Thank you for viewing. This is an Asics S4 (26.0cm). I made a mistake in choosing the size, so I'm selling it. I purchased it this spring and the running distance is 10km once and 5km twice, so I think the condition is good. Please see the photos for details. I think this is a good shoe for runners aiming for a sub-4 marathon. (I currently wear 26.5cm S4) I threw away the box for these shoes, so I will ship them in a different shoe box. Thank you very much. *I plan to ship within 1-2 days, but I cannot ship from 12/31 to 1/2. Please be aware of this.*