I've been using these for about a month. The slim shape is cool. There are a lot of hills near my house, so I gave up on the thick soles, lol. The height of the thick soles (see the photo, the rubber part of the shoes) is 8.5cm. I've set the size as 23cm for the convenience of listing on Mercari, but the shoes only say "M size." I believe they are around 23cm. The rubber part of the shoes, the inside of the foot, is slightly scuffed. Please check the third photo. I think the upper part of the shoes and the parts that are visible are quite clean.