Find the size we recommend for you, depending on your head size.

A: Head circumference in cm	Size to select
53 - 54	XS
55 - 56	S
57 - 58	M
59 - 60	L
61	XL

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Our advice: To measure your head circumference, you must, using a tape measure, go around your skull as shown in the diagram, passing through the forehead and the back of the head. If you do not have a tape measure, go around it with a string and transfer the length to a standard tape measure.