Fits snug – Tilley suggests you size up for the traditional Tilley fit (2 fingers inserted between hat and head)
| Hat Size | Inches | Centimeters | Tilley Size |
|---|---|---|---|
| X-SMALL (XS) | 215/8 | 54.6 | 67/8 |
| Small (5) | 22 | 55.9 | 55 |
| Medium (M) | 22 1/2 | 57.2 | 56 |
| Large (L) | 23 1/8-23 1/2 | 58.7-59.1 | 57-58 |
| X-Large (XL) | 23 7/8-24 1/4 | 60.3-61.3 | 59-60 |
| 2X-Large (2XL) | 245/8 | 62.2 | 61-61.5 |
| 3X-Large (3XL) | 25-26.1/8 | 63.5-66.5 | 62.5 |