| Waist Size |
| X Small | Small | Medium | Large | X Large |
| Inches | 28 | 30 | 32 | 34 | 36 |
| cm | 71 | 76 | 81 | 86 | 91 |
| Inseam |
| X Small | Small | Medium | Large | X Large |
| Inches | 31 | 32 | 33 | 34 | 34 |
| cm | 79 | 81 | 84 | 86 | 86 |
Source: 3rd Rock
In Our Opinion
The 3rd Rock size chart is accurate and reliable.
We are confident in the fit of 3rd Rock trousers and shorts because:
- We have tried them on ourselves, in a full range of models and sizes.
- We monitor customer returns.
- We see customers wearing the pants and shorts in our Rock Climbing/Outdoor Shop
- We have been selling them for years!
How to Measure Your Waist
- Wear just an undergarment or nothing at all.
- Stand up straight with your arms hanging by your sides
- Breath normally and run a soft tape measure around your waist just about in line with your belly button. The tape measure should be snug, but not tight.
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How to Measure Your Inside Leg
- Wear just an undergarment or nothing at all.
- Stand up straight with your arms hanging by your sides and your feet shoulder width apart.
- Ask someone to help you to measure from your pelvis to the floor
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