| O'Neill product size | EU size | UK size | Chest (cm) | Waist (cm) |
| XS | 32/34 | 6 | 80-84 | 60-64 |
| S | 34/36 | 8 | 85-89 | 65-69 |
| M | 38 | 10 | 90-94 | 70-74 |
| L | 40/42 | 12 | 95-99 | 75-79 |
| XL | 42/44 | 14 | 100-104 | 80-84 |
Chest:With you arms relaxed by your side, measure around the fullest part of you chest
Waist:Measure around your natural waistline.