I used these last season, and they are in good condition with less than 10 uses. They are 23cm, but because of the boa lining, those who usually wear a slightly smaller size, like 22.5cm to 22cm, might find them better. According to the official website reviews, some people are fine with their usual size, so it might depend on the width of your foot. I usually wear 23cm and had no problems. Thank you. Size: 23cm