NO:301-K/3-6 years old, suitable for foot length 14-16cm, refer to shoe size 23-26;

NO:302-K/6-9 years old, suitable for foot length 16-18cm, refer to shoe size 26-28;

NO:303-K/9-12 years old, suitable for foot length 18-20cm, refer to shoe size 29-32;

NO:305-K/12-15 years old, suitable for foot length 20-23cm, refer to shoe size 33-36;

 {Tips: because children's foot size is generally too large now, please buy socks according to the baby's foot length when you buy socks.}