Measure your head circumference for the size of your bike helmet

Find the size we recommend according to your head size

A: Head circumference in cm Size to select
53 - 56 S
56 - 59 M
59 - 63 L

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Our advice: To measure your head circumference, you must, using a seamstress tape, go around your skull as shown in the diagram, passing through the forehead and the back of the head. If you don't have a seamstress's meter, go around with a string and record the length on a standard meter.