Size Guide Printful Vintage Caps
| A (inches) | B (inches) | C (inches) | D (inches) | |
| One size | 18 ½-23 ¼ | 4 ⅜ | 2 ⅞ | 7 ⅛ |
| A (cm) | B (cm) | C (cm) | D (cm) | |
| One size | 47-59 | 11 | 7.2 | 18 |
| A (inches) | B (inches) | C (inches) | D (inches) | |
| One size | 18 ½-23 ¼ | 4 ⅜ | 2 ⅞ | 7 ⅛ |
| A (cm) | B (cm) | C (cm) | D (cm) | |
| One size | 47-59 | 11 | 7.2 | 18 |