Size: 21 Insole Length: 14cm/5.51 Recommended age: 18-24 Months US: 7 UK: 6 EU: 23 Suitable For: Toddler Size: 22 Insole Length: 14.5cm/5.71 Recommended age: 2-2.5 Years US: 8.5 UK: 8 EU: 24 Suitable For: Toddler Size: 23 Insole Length: 15cm/5.91 Recommended age: 2.5-3 Years US: 9 UK: 8.5 EU: 25 Suitable For: Toddler Size: 24 Insole Length: 15.5cm/6.10 Recommended age: 3-3.5 Years US: 9.5 UK: 9 EU: 26 Suitable For: Toddler Size: 25 Insole Length: 16cm/6.30 Recommended age: 3.5-4 Years US: 10 UK: 9.5 EU: 27 Suitable For: Toddler Size: 26 Insole Length: 16.5cm/6.50 Recommended age: 4-4.5 Years US: 10.5 UK: 10 EU: 27.5 Suitable For: Little Child Size: 27 Insole Length: 17cm/6.69 Recommended age: 4.5-5 Years US: 11 UK: 10.5 EU: 28 Suitable For: Little Child Size: 28 Insole Length: 17.5cm/6.89 Recommended age: 5-5.5 Years US: 11.5 UK: 11 EU: 28.5 Suitable For: Little Child Size: 29 Insole Length: 18cm/7.09 Recommended age: 5.5-6 Years US: 12 UK: 11.5 EU: 29.5 Suitable For: Little Child Size: 30 Insole Length: 18.5cm/7.28 Recommended age: 6-7 Years US: 12.5 UK: 12 EU: 30 Suitable For: Little Child Size: 31 Insole Length: 19.5cm/7.68 Recommended age: 8.5-9 Years US: 13.5 UK: 13 EU: 31 Suitable For: Little Child Size: 32 Insole Length: 20cm/7.87 Recommended age: 9-9.5 Years US: 1 UK: 13.5 EU: 32 Suitable For: Little Child Size: 33 Insole Length: 20.5cm/8.07 Recommended age: 9.5-10 Years US: 1.5 UK: 1 EU: 33 Suitable For: Little Child Size: 34 Insole Length: 21cm/8.27 Recommended age: 10-10.5 Years US: 2 UK: 1.5 EU: 33.5 Suitable For: Little Child Size: 35 Insole Length: 21.5cm/8.46 Recommended age: 10.5-11 Years US: 2.5 UK: 2 EU: 34 Suitable For: Little Child Size: 36 Insole Length: 22cm/8.66 Recommended age: 11-11.5 Years US: 3 UK: 2.5 EU: 34.5 Suitable For: Little Child