These sneakers have a slightly longer back. There are no noticeable stains; in fact, they haven't been worn much. I am 23cm, but my feet are narrow, so they felt big on me. They fit just right with thick socks. Those with high insteps might find the elastic band area a bit tight. The fabric stretches well. I can't explain the details well, so please feel free to ask any questions. They will be shipped via Takkyubin Compact. The top part will likely be compressed. Thank you.