I found that when I first received it, the prints can peel off very easily if you wear it.
I fixed it by placing a thin cloth above the ankle support and iron the prints for about 20 to 30 seconds each side. This makes it stay on the fabric much better.
I'm still a little dubious on how much use I can get out of it before the prints tear off again, so I'll keep them more or less as a collector item. Slightly disappointed.