Hats and caps are usually measured in UK, European and American sizes. If ordering as a gift or a present for somebody else large tends to be most common for men and medium for women.
To ensure a perfect fit for your new hat or cap follow the guidelines below: 1. Use a cloth tape measure or alternatively, a piece of string and measure against a ruler to determine the length 2. Place around your head, starting from your forehead and keeping above the ears 3. Measure in inches or centimeters 4. If you are between sizes, opt for the larger size 5. Use the chart below to determine your size