Size guide

 Head circumference in cm Letter size Age
Below 40 cm XS New Born
40 - 42 cm S 3 - 6 months
44 - 46 cm M 6 - 12 months
48 - 50 cm L 1,5 - 5 years
52 - 54 cm XL 5 - 8 years
56 - 58 cm XXL + 8 years and adults

 

Please note the age is only for a reference, ensure the best fit by measuring the head circumference.