Here's a step-by-step guide to determine the right hat size:
 
1. Using a soft measuring tape, measure your head circumference just above the ears, right where the hat will rest. It's a good practice to measure multiple times to ensure you obtain a consistent and accurate result. Enjoy a well-fitted hat!  
2.  Don't have a soft measuring tape on hand? No problem! You can use a piece of string or ribbon to measure your head circumference, as described in step
3. Then, measure the length of the string you used.