Size: 15-11.5cm / 16-12cm / 17-12.5cm / 18-13cm / 19-13.5cm / 21-13cm / 22-13.5cm / 23-14 cm / 24-5 cm / 25-15 cm / 26-15.6cm / 27-16.2 cm / 28-16.8cm / 29-17.4cm / 30-18 cm Suggestion: Before purchasing, please carefully check the size chart and choose the appropriate size based on the inner length of the shoes. Please note that the sizes 18 and 21 are the same, while the sizes 19 and 22 are the same. Design: The combination of lace up and Velcro makes it easy to put on and off, and children can also adjust it themselves. The PU leather, paired with colorful lighting on the sole, making it suitable for toddlers. Size measurement: For example, if your baby's feet are 17cm long, for comfort, please choose shoes that are 18cm long. Features: Comfortable and breathable interior, soft and durable, fashionable and cute appearance suitable for any baby's daily travel. Colorful lighting is very personalized when walking.