| Size | S | M | L | XL | XXL | XXXL |
| Neck | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 | 18-18.5 | 19-19.5 |
| Chest | 34-37 | 38-41 | 42-45 | 46-49 | 50-53 | 54-57 |
| Waist | 27-30 | 31-33 | 34-36 | 37-40 | 41-44 |
Sizes are not consistent
"I ordered two pairs of the Traveler 5-pocket pants. One pair fit perfectly and the other one was so tight I couldn’t even button the button. The length was identical but not the fit. The same thing happened a few years ago when Costco was selling this product. I bought three pairs, and two fit perfectly and the third was so baggy there were two inches extra around the waist. It’s a shame because I really like them, but I won’t go through the hassle again because they’re not being delivered with the correct size shown on the tag."