New soft toddler leather insoles with double moulding support the longitudinal arch for healthy development of the baby's foot. Metric numbering is in cm, i.e. 17 = 17cm, 18 = 18cm, etc. The insoles correspond to the following children's shoe sizes indicated in French sizing: 17/25, 18/27, 19/29, 20/30, 21/32, 22/34. Material: leather, EVA, latex