There are two primary methods of measuring your hat size and are based on the style in which you wear your hat. You will need to take both measurements (shown below) and then use the larger of the two measurements to determine your hat size. Once you've received your hat, you can decide on the style you'd like to size your hat to and adjust your hat accordingly. 
TIP:  If you don't have a textile measuring tape, use a string or piece of yarn to measure the distance around your head. After you have marked the yarn around your head, lay it out flat on the ground or table and measure the straightened out piece of yarn with a measuring stick or regular measuring tape.
Method 1: The Traditional Style 
This is the traditional style of wearing a hat. The front tip of the hat is low on the forehead, just above your eyebrows, causing the hat to sit nearly level with the ground. To measure your head using the traditional style method, measure the distance around your head from the center of the back of the head to the forehead just above the eyebrow as shown below. 
1. Use a textile measuring tape (or string) to measure the distance around your head crossing through the center part of the back of your head and the forehead just above the eyebrow. The tape should be level with the ground. 
2. Check the measurement of the tape wrapped around your head. Hat sizing is in cm. If you are in-between sizes, we suggest sizing up and adjusting your hat accordingly. 
Method 2: The Halo Style
This is the halo style way of wearing a hat. The front of your hat is raised up and the hat sits on the back of your head. To measure your head size using the halo method, measure the distance around your head passing through the back of your head, just above your neck, and the front of you head up on your brow as shown below. 
For more questions about hat sizing, please contact Client Services at hello@caljune.com.