| Hat Size | Head Size (Inches) |
| Men's Adjustable (OSFA) | 22 - 23¼ |
| Men's Stretch-Fit (Medium/Large) | 22 - 23 |
| Men's Stretch-Fit (Large/Xlarge) | 23 - 24¼ |
| Men's Stretch-Fit (Xlarge/2Xlarge) | 22 - 23 |
| Women's Adjustable (OSFA) | 21¼ - 22¾ |
| Youth Adjustable (OSFA) | 20⅞ - 22⅜ |
| Youth Stretch-Fit (Youth Fitted) | 20⅞ - 22 |