My four year old son wears a size 10.5 or 11. I followed the size chart from the listing and ordered these socks for him in a size 7-8. The socks fit him really well now and they are very stretchy so I can see they will fit him well for quite a while. These socks are medium length and medium thickness. They look and feel like good quality socks. They are very soft and elastic. They remain, but are not too rigid or restrictive. They don't dent my son's calves. He likes wearing them and says they are very comfortable. I've washed and machine dried these socks several times and they fit and look great every time. I am very satisfied with these socks and can recommend them.
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