• Step 1: Get a flexible tape measure or a piece of string.
  

• Step 2: Place the tape measure or string around the widest part of your head, just about a centimeter above your eyebrows and ears, and around the back of your head (do not go past the "bump" on the back part of your head}. Ensure that the tape measure or string is level and snug but not overly tight. If you are using a string, mark the point where the two ends meet, and then measure the string with a ruler.
  

• Step 3: Note down the measurements in inches or centimeters. This measurement will determine your hat size.
  

That's it! By following these three easy steps, you can accurately measure your head for a custom-fitted SamBrero Hat that will fit perfectly.