3-5 years old 16-18 years old Recommended foot length 14-16cm 1-3 years old 14-16 years old recommended foot length 12-14cm 5-7 years old 18-20 years old Recommended foot length 14-16cm 1-3 years old 14-16 years old recommended foot length 12-14cm 5-7 years old 18-20 years old