I found the same problem when I bought these a few months ago. Like an trusting customer to a supposed reputable company that prides itself on high quality and setting the industry standard, I did not try them on before taking the tags off and trying-on BOTH pairs I bought. I purchased 2 pairs of 30x30 559's (my waist is between 28-29 but I invariably buy jeans with an extra 1" of room for comfort - hence the 559 selection). One pair was of high quality, thick denim material, and accurate sizing; color: Hawthorne; Sweat-shop: Mexican.

The other, to my abject dismay, I eventually measured and gave to my much stockier half-brother whom serendipitously came into this otherwise great gift of high quality stitching, thick denim and appropriate sizing (for him). Although the tags both inside and out say "30 x 30," my brother, a 34-35W X 30L, still had a surplus of room in the waist. Though inseam length was accurate. I measured 18.25 inches at the jean-waist from side to side with a Stanley tape-measure as the jeans rested flat on the wood floor. Clearly, if you double this number for waist length you get something other than 30 inches [36.5 inches]- and that doesn't even take into account the natural bow in the cut of the waist lending any pair of jeans slightly more length through the waist than any straight measurement reflects.

This obvious lack of quality assurance is most egregious to the point of almost being comedic had the product not cost as much. Whatever, if any oversight is being facilitated by the American company and it's disparately-tied willy-nilly mosaic of 3rd-world scattered manufacturing plants, this review and others here seem to show Levi's new lackadaisical-bordering-on-contemptuous attitude toward its no-doubt dwindling customer-base.

Hopefully, this is a plant-specific issue that by now is rectified. If not, you may find yourself tempted to roll those "which-sweatshop-has-a-made-in-U.S.A.-measuring tape-and-not-a-copy-of-a-copy-of-a-copy-on-rope" dice... daddy needs a new pair of trousers... Yahtzee! For you brave souls, good luck!