Dear friends, welcome to my shop!
we send CN size, please refer to your foot length to choose size.
For example, my foot length is 23.5 I will choose US size 6=CN size 37:
Usually I will choose 1 size bigger, because my foot is a little wide and fat.
Usually Chinese feet are smaller than European feet.
If you don't know how to choose, you can contact us. We will be happy to serve you.