DescriptionProduct Description Please measure your child's actual inside length and purchase shoes with reference to the actual inside length.Please do not choose the size based on age. Suggested purchase for reference: foot length is about 1CM smaller than the inner length of the shoe.If the feet are fat, it is recommended to buy a larger size.Shoe size table size shoe inner length recommended foot length recommended age XS 13cm 11.5-12.5cm 6-12 months old S 14cm 12.6-13.5cm 12-18 months old M 15cm 13.6-14.7cm 18-30 months old L 16cm 14.8-15.5cm 30-48 months oldDue to manual measurement, there will be a difference of 0-0.5 cm. Note: Each baby's growth and development is different. Please buy according to the actual foot length of your baby.The recommended age is a reference. Please make sure you choose the correct size before placing your order, please refer to the size chart and size instructions. We will ship according to the style and size you ordered.