Each child is differentso we cannot guarantee that every Filou of the same age will wear the same size. But below you can find a general overview. We approximate the sizes according to age. Tip: at the beginning of the season, we recommend buying one size more than the child is currently wearing.

0 month = 50 cm
1 month = 56 cm
3 month = 62 cm
6 month = 68 cm
9 month = 74 cm
12 month = 80 cm
18 month = 86cm

12-18 month = 80-86cm

2 - 3 years = 92 - 98 cm
4 - 5  years = 104 - 110 cm 
6 - 7 years = 116 - 122 cm
8 - 9 years = 128 - 134 cm
10 years = 140 cm