Titleist Hat Sizing Guide
| Size | Head Circumference |
|---|---|
| Small/Medium | 21 7/8" to 22 5/8" |
| Medium/Large | 22 5/8" to 23 1/2" |
| Large/X-Large | 23 1/2" to 24 1/4" |
| X-Large/XX-Large | 24 1/4" to 25" |
Measure around your head, keeping tape level and firm across temples to determine correct size.