Measurements refer to body size, not garment dimensions, and are in inches, unless otherwise noted. Inseam measurements are from the crotch to floor. Fit note: Patagonia waders are less bulky than most brands yet still allow room for layering. The adjustable suspender and belt system can customise the fit +/- three inches in torso width and height.
*Largest girth(chest, waist or hips)
| SHORT | Girth* (in) | Inseam (in) | Shoe Size (US) |
| XS | 34-35 | 30 | 7-8 |
| S | 36-38 | 30 | 7-8 |
| SM | - | - | - |
| M | 39-41 | 30 | 9-11 |
| ML | - | - | - |
| LM | 42-45 | 30 | 9-11 |
| L | - | - | - |
| XLM | 46-48 | 30 | 9-11 |
| XL | 46-48 | 30 | 12-13 |
| XXL | - | - | - |
| REGULAR | Girth* (in) | Inseam (in) | Shoe Size (US) |
| XS | 34-35 | 32 | 7-8 |
| S | 36-38 | 32 | 7-8 |
| SM | 36-38 | 32 | 9-11 |
| M | 39-41 | 32 | 9-11 |
| ML | 39-41 | 32 | 12-13 |
| LM | 42-45 | 32 | 9-11 |
| L | 42-45 | 32 | 12-13 |
| XLM | 46-48 | 32 | 9-11 |
| XL | 46-48 | 32 | 12-13 |
| XXL | - | - | - |
| LONG | Girth* (in) | Inseam (in) | Shoe Size (US) |
| XS | - | - | - |
| S | - | - | - |
| SM | 36-38 | 34 | 9-11 |
| M | 39-41 | 34 | 9-11 |
| ML | 39-41 | 34 | 12-13 |
| LM | 42-45 | 34 | 9-11 |
| L | 42-45 | 34 | 12-13 |
| XLM | 46-48 | 34 | 9-11 |
| XL | 46-48 | 34 | 12-13 |
| XXL | - | - | - |
| KING | Girth* (in) | Inseam (in) | Shoe Size (US) |
| XS | - | - | - |
| S | 40-42 | 31½ | 7-8 |
| SM | - | - | - |
| M | 43-45 | 32½ | 9-11 |
| ML | - | - | - |
| LM | 42-45 | 34 | 9-11 |
| L | 42-45 | 34 | 12-13 |
| XLM | 49-51 | 35 | 9-11 |
| XL | 49-51 | 35 | 12-13 |
| XXL | 52-54 | 35 | 12-13 |