Please Note: Size charts are for general reference. Each item's fit varies depending on the materials and construction.
One-Size-Fits-Most (OSFM) and Adjustable hats typically fit up to XL or 7-5/8, unless otherwise noted.
| SIZE | CM | INCHES | |
| S | 6 ¾ - 6 ⅞ | 54-55 | 21" - 21 ½" |
| M | 7 - 7 ⅛ | 56-57 | 22" - 22 ½" |
| L | 7 ¼ - 7 ⅜ | 58-59 | 22 ¾" - 23" |
| XL | 7 ½ - 7 ⅝ | 60-61 | 23 ½" - 24" |
| XXL | 7 ¾ - 7 ⅞ | 62-63 | 24 ⅜" - 24 ⅞" |