Your little darling will never want to take these adorable unicorn print shoes off!
Measure your child's foot and add 1cm to this measurement. (It's best to measure both feet as one foot is usually bigger than the other).
This will be the insole size that you will need to choose.
i.e. Foot measurement + 1 cm = Insole measurement
eg. If their foot measurement is 14cm, then choose the shoe with the insole measurement closest to 15cm. In this style that would be a size 7