Im super disappointed in these socks. Apparently we ended up with this set and the same set from a different seller unintentionally because we already knew they ran small. They say ages 9-12 but it seemed theyd fit a 5-8 year old much better. Maybe even a small age 8. Were going to keep them only because we have the younger ages as well. Dont waste your money on them. Super thin and much smaller than advertised. The only things thats nice are the colors. Both socks show say 9-12. The bottom pair fits about 3/4 of an inch bigger than the bottom. Same seller for both.