This popular model is a collaboration between Asics and ELDORESO, and it sold out quickly at the time. I used them for about 40km of regular running. There is some wear and tear from use, but there are no noticeable signs of sole separation, and I think the condition is good. Please check the photos for details. - Brand: ASICS × ELDORESO - Model Name: S4 - Size: 27.0cm - Running Distance: Approximately 40km ▪︎Product Details The "S4" running shoes are designed for runners aiming for a sub-4 (finishing in under 4 hours) marathon. The "S4" is a model equipped with a carbon plate and incorporates four elements: "Speed," "Stability," "Safety," and "Sub4." This collaboration features a theme of breaking through one's own limits and achieving record improvements, with graphics inspired by cracked concrete on the tongue and Asics stripes, and a marble pattern on the midsole (the intermediate cushioning material between the upper and the sole). Thank you.