I bought a 28cm size because 27.5cm didn't fit, but now they're too loose and I have to tighten the laces over the instep. I had to retie the laces during long distances, so I'm reluctantly selling them. I ran about 30km in them, but there are no visible scratches (please check the photos). The outsole, due to the material, turns yellow and doesn't come off even after running outside once. Please only purchase if you don't mind that they are used. All tags are included. Thank you.