How to Measure Your Head
1. Get your measuring tape and place it around your head over your the furthest part on the back of your head. It helps to have someone measure your head for you, to get the most accurate size.
2. Make sure the measuring tape is sitting where you like your hat to sit.
3. Ensure that you aren't pulling the measuring tape too firm or too loose, to make sure you're getting the most comfortable measurement.
4. Record your measurement in centimetres. Measure 2 - 3 times to make sure the correct size is recorded.