| Size | Centimeter | Hat Size | Inches | ||||
| XXS | 51-52 | 6 3/8 – 6 1/2 | 20- 20 1/2 | ||||
| XS | 53-54 | 6 5/8 – 6 3/4 | 20 7/8 – 21 1/4 | ||||
| S | 55-56 | 6 7/8 – 7 | 21 5/8 – 22 | ||||
| M | 57-58 | 7 1/8 – 7 1/4 | 22 1/2 – 22 7/8 | ||||
| L | 59-60 | 7 3/8 – 7 1/2 | 23 1/4 – 23 5/8 | ||||
| XL | 61-62 | 7 5/8 – 7 3/4 | 24 – 24 3/8 | ||||
| XXL | 63-64 | 7 7/8 – 8 | 24 3/4 – 25 1/4 | ||||
| XXXL | 65-66 | 8 1/8 – 8 1/4 | 25 5/8 – 26 | ||||
| XXXXL | 67-68 | 8 3/8 – 8 1/2 | 26 3/8 – 26 3/4 | ||||
| XXXXXL | 69-70 | 8 3/4 – 8 3/4 | 27 1/4 – 27 5/8 | ||||
| Youth S | 49-50 | 6 1/8 – 6 1/4 | 19 1/4 – 19 3/4 | ||||
| Youth M | 51-52 | 6 3/8 – 6 1/2 | 20 – 20 1/2 | ||||
| Youth L | 53-54 | 6 5/8 – 6 3/4 | 20 7/8 – 21 1/4 | ||||
| Youth S/M | 49-50 | 6 1/8 – 6 1/4 | 19 1/4 – 19 3/4 | ||||
| Youth L/XL | 51-52 | 6 3/8 – 6 1/2 | 20 – 20 1/2 |
