To measure your head circumference, wrap a tape measure around the widest part of your head – over your hair, from your forehead, above your ears and around the back, then round to the front again. Basically you need to measure your head exactly where the hat will sit. Make sure the tape measure is snug – not too tight or too loose.
To measure the crown length, measure from the crown of the head to the base of the ear in a straight line.
Once you have obtained your head size, compare it to the chart below. We recommend that you use a centimetre measurement for the most accurate fit.