| Standard Size | Hat Size | Inches | Centimeters |
|---|---|---|---|
| 4XS | 6 3/8 | 20 1/16 | 51 |
| 3XS | 6 1/2 - 6 5/8 | 20 1/2 - 20 7/8 | 52-53 |
| 2XS | 6 3/4 - 6 7/8 | 21 1/4 - 21 5/8 | 54-55 |
| XS | 7 | 22 | 56 |
| S | 7 1/8 | 2 3/8 | 57 |
| M | 7 1/4 - 7 3/8 | 22 3/4 - 23 1/4 | 58-59 |
| L | 7 1/2 | 23 5/8 | 60 |
| XL | 7 5/8 - 7 3/4 | 24 - 24 3/8 | 61-62 |
| 2XL | 7 7/8 - 8 | 24 3/4 - 25 1/4 | 63-64 |
| 3XL | 8 1/8 - 8 1/4 | 25 5/8 - 26 | 65-66 |
| 4XL | 8 3/8 - 8 1/2 | 26 3/8 - 26 3/4 | 67-68 |
Measuring the head is only a starting point for the entire sizing procedure. Due to varying shapes, heads that are apparently the same size when measured by a tape may not necessarily fit the same size helmet. A small metal tape measure or a cloth tape may be used to make your initial measurement. You can also use a string, which can then be laid against a measuring tape.
(H) Head
Measure the circumference of the head at a point approximately one inch above the eyebrows in front, and at a point in the back of the head that results in the largest possible measurement. Take several measurements. The largest measurement is the one you want to use.
