Size: 21 ?Length: 13CM/5.1" Age: 12-15Months US➤: 6 Suitable For: Toddler Size: 22 ?Length: 13.5CM/5.3" Age: 15-18Months US➤: 6.5 Suitable For: Toddler Size: 23 ?Length: 14CM/5.5" Age: 18-24Months US➤: 7 Suitable For: Toddler Size: 24 ?Length: 14.5CM/5.7" Age: 2-2.5Years US➤: 8 Suitable For: Toddler Size: 25 ?Length: 15CM/5.9" Age: 2.5-3Years US➤: 8.5 Suitable For: Toddler Size: 26 ?Length: 15.5CM/6.1" Age: 3-3.5Years US➤: 9 Suitable For: Toddler Size: 27 ?Length: 16CM/6.3" Age: 3.5-4Years US➤: 9.5 Suitable For: Toddler Size: 28 ?Length: 16.5CM/6.5" Age: 4-4.5Years US➤: 10 Suitable For: Little Kid Size: 29 ?Length: 17CM/6.7" Age: 4.5-5Years US➤: 11 Suitable For: Little Kid Size: 30 ?Length: 18CM/7.1" Age: 5.5-6Years US➤: 12 Suitable For: Little Kid Size: 31 ?Length: 18.5CM/7.3" Age: 6.5-7Years US➤: 12.5 Suitable For: Little Kid Size: 32 ?Length: 19CM/7.5" Age: 7.5-8Years US➤: 13 Suitable For: Little Kid Size: 33 ?Length: 20CM/7.9" Age: 9-9.5Years US➤: 1 Suitable For: Little Kid Size: 34 ?Length: 20.5CM/8.1” Age: 9.5-10Years US➤: 1.5 Suitable For: Little Kid Size: 35 ?Length: 21CM/8.3" Age: 10-10.5Years US➤: 2 Suitable For: Little Kid Size: 36 ?Length: 21.5CM/8.5" Age: 10.5-11Years US➤: 2.5 Suitable For: Little Kid