Measure your head size: wrap a measuring tape around your head 2.5 cm
above your eyebrows.
This will establish the longest measurement around your head.
ADULT CIRCUMFERENCE
XXS 51 – 52 cm
XS 53 – 54 cm
S 55 – 56 cm
M 57 – 58 cm
L 59 – 60 cm
XL 61 – 62 cm
XXL 63 – 64 cm
3XL 64 – 65 cm