FUNJOON Kids Socks Size Chart Socks Size S fits US toddler shoes size 11C-13C, Age approx. 4-6Y Socks Size M fits US kids shoes size 13C-2.5Y, Age approx. 6-8Y Socks Size L fits US big kids shoes size 2.5Y-4.5Y, Age approx. 9-12Y Considering the differences in each child's growth, the age range is for reference only. Please choose the most suitable size according to your child's shoe size.
