Dear friends, since all sizes of children's shoes are different, when you order children's shoes, you should follow our internal dimensions and length. Depends on the length of the insole. The insole length is equal to the foot length plus 1cm, and the fat foot plus 1.5cm.The size is not standardized and easy to order. The comfortable length is an increase of about 1cm in foot length.Due to the long delivery time, the child is growing very quickly. Please choose larger shoes for the child. Please choose the appropriate size. All shoes will be shipped in bubble bags, not boxes!!!