Thank you for viewing. Nike Air Zoom Alphafly NEXT% Size is 27.5cm. I really liked the shoe because of its great responsiveness, so I bought and owned quite a few pairs. I decided to sell some as I realized I wouldn't be able to use them all. The running distance is 74km, according to my training log. I still feel the responsiveness, and there is no air leak. However, the soles show wear and tear appropriate for the distance. Thank you for your consideration. I am currently listing several other shoes. If you are interested in purchasing multiple pairs, I will offer a discount on shipping + α. Please let me know in advance.