I ordered 4 pairs of Carsons in different colors (all size 0 which was recommended) and each pair fit totally different. For reference, I'm 5'4, 108 lbs. short legs, long torso, straight-waisted, with a round butt for my size.

Here's how sizing varied:

All four pairs were about an inch and a half too long unrolled, but I have that issue with all pants.

The Favorite Fade size 0 was a bit too big, but I kept them (nothing to size down to) hoping a wash and dry might shrink them slightly. They are super comfortable, so they'll be good for weekend casual comfort.

The Black size 0 was a perfect fit. These were the only size 0 that I ordered that was a spot on fit (other than length)

The Adobe size 0 was a tad too small in the waist. I exchanged for a size 2, which is a good fit. A tiny bit snug, but stretched after wearing a couple hours.

The Dark Mauve Carson Cord (midrise) size 0 was way too small in the waist. I could barely get them buttoned. I exchanged for a full two sizes up. I received the size 4 today and they are way too big all the way around. I'm going to try a size 2 next and hope that works out.

I love Carson jeans and cords, but I wish there was some sizing consistency. Each order is a wild guess as far as fit and all of the returning and exchanging is annoying. I'm now waiting on store credit from my last return so I can try to get the right size on the cords.