| US | EUROPE | UK |
| XS | 34-36 | 2-3.5 |
| S | 37-39 | 4.5-5.5 |
| M | 40-42 | 6.5-8 |
| L | 43-45 | 8.5-10 |
| XL | 46-48 | 11-12.5 |
| XXL | 49-51 | 13-14.5 |
| KXS | 16-18 | OK-2K |
| KS | 19-21 | 3K-5K |
| KM | 22-24 | 5.5K-7K |
| KL | 25-27 | 7.5K-9.5K |
| KXL | 28-30 | 10K-11.5K |
| KXXL | 31-33 | 12.5K-1 |
HAT & CAP SIZING
| SIZES | LENGTH |
| Babies | 42cm |
| Toddlers | 48-50cm |
| Kids | 52-54cm |
| Yout | 54-60cm |
| Women(S/M) | 54-56cm |
| Men(M/L) | 56-58cm |
| Large | 58-60cm |