Please choose the size after measure your baby's feet Specifications: Size 0-6 Months: Heel to toe Length:10cm/3.94inches Size 6-9 Months: Heel to toe Length:11cm/4.33inches Size 9-12 Months:Heel to toe Length:12cm/4.72inches 1inch= 2.54cm Delebaois well known for its baby shoes, we are professional for making baby shoes for more than 10 years. We are serious about product quality, the customer experience and satisfactions are our first priority. It is the best choice for your baby to choose our products.