These socks were for my average sized, almost 8 year old who wears size 2 shoes. The calf area at the top of these are very small. He breaks out in hives around the top elastic band of these socks (goes away several hours after treatment with an antihistamine cream). This has never happened with socks (or anything) before, but is a recurrent reaction only with these socks. I'm not sure if it is only due to them being tight at the leg area or if there is something in the fabric (I've washed them several times) that leads to this reaction. Very strange to me. I wish I could return them or get a refund. We have other socks/shirts/underwear of this brand and have been happy with them. Thanks.