Just order your standard tag size! I spend way too much time measuring multiple pairs of pants I had and comparing it to the size chart only to have to exchange them as soon as they arrived because they were too big. I normally wear a 31-32/32 and the size chart told me, based on the actual measurements of jeans I like and wear, to order a 34. I ended up having to exchange them for a 32.
Other than that: they fit great, have plenty of pockets in very intuitive locations, are durable as ****, and have become my new favorite pants. Period. There are a few things I’m not fond of, mostly the QA (loose strings, knee patches not symmetrically sewn, etc.) but I definitely plan to get more pairs, so it’s an overall win. Just make sure to buy your standard size.