| O'Neill product size (EU/UK) | Pant size (inches) | Waist (cm) | Hip (cm) |
| XS | 28-29 | 72-77 | 87-91 |
| S | 30-31 | 78-82 | 92-96 |
| M | 32-33 | 83-87 | 97-101 |
| L | 34 | 88-93 | 102-106 |
| XL | 36 | 94-99 | 107-112 |
| XXL | 38 | 100-105 | 113-118 |
Waist:Measure around your natural waistline.
Hips:Measure around the fullest part at the top of your hips.
Inseam:Using pants that fit well, measure from the crotch seam to the bottom of the leg.