Our 4 year old wears size 8.5-9 shoes and the average size was too big. We exchanged them for a small size and they are perfect. I like the extra padding at the top/back of the ankle to keep new shoes from chafing against my skin. They are a little thicker, so your feet get sweaty on hot days. But that's a small price to pay for more durable socks. We will buy more in the future.
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Aminson Grip Ankle Socks: Non-Skid Slipper Crew Socks for Kids Boys and Girls - 6/12 Pairs
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