I bought these socks for a specific reason and it was not planter fasciitis, my daughter is 9 1/2 and she tumbles.
She loves to tumble; backhand springs, whips, you know what I'm saying. So there are times that her ankles are not as strong as they should be. So I bought these to provide support to her ankles while she tumbles.
This was the best buy, I ordered a small and she wears between a 3-4.
These socks were purchased at a discount price for an honest review of the product.