it's kind of tight since if I chose a larger size, it will be too loose to support. but even as tight as the one I got, I am not too sure it will have the support. but at least it can be hidden behind the sock.
This is the perfect product but I ordered the next size up (medium) and it was so tight I could barely pull it onto my foot. I like the way it is made and have ordered Large because it will give great arch and ankle support.