*** Sizing : Measure your child's foot on a peice of paper using a regular school ruler Size 5 : 12 CM (12-18 M) Size 6: 12.5 CM (12-18M) Size 6.5: 13 CM (1T-1.5T) Size 7: 13.5 CM (1.5T-2T) Size 7.5: 14 CM (2T-2.5T) Size 8: 14.5 CM (2.5T-3T) Size 8.5: 15 CM (3T-3.5T) Size 9: 15.5 CM (3.5T-4T)