Regatta Men's Shirts & Jackets Size Guide
| Size | Chest | EU Size |
| XXS | 34" | 44 |
| XS | 36" | 46 |
| Small | 38" | 48 |
| Medium | 40" | 50 |
| Large | 42" | 52-54 |
| XL | 44" | 56 |
| XXL | 47" | 58-60 |
| 3XL | 50" | 62 |
| 4XL | 53" | 64 |
| 5XL | 56" | 66 |
| Size | Chest | EU Size |
| XXS | 34" | 44 |
| XS | 36" | 46 |
| Small | 38" | 48 |
| Medium | 40" | 50 |
| Large | 42" | 52-54 |
| XL | 44" | 56 |
| XXL | 47" | 58-60 |
| 3XL | 50" | 62 |
| 4XL | 53" | 64 |
| 5XL | 56" | 66 |