| O'Neill product size (EU/UK) | Chest (cm) | Waist (cm) |
| XS | 87-92 | 72-77 |
| S | 93-97 | 78-82 |
| M | 98-102 | 83-87 |
| L | 103-107 | 88-93 |
| XL | 108-114 | 94-99 |
| XXL | 115-122 | 100-107 |
Chest:With you arms relaxed by your side, measure around the fullest part of you chest
Waist:Measure around your natural waistline.