I just got two pairs of C/E jeans from shopbop. I ordered one in my normal size and the other in one size larger because that's all they had left in a style that I wanted. Honestly they both seem to fit almost the same. The larger size feels a bit more stretchy, the smaller size is a slimmer fit. They both look hot and I am keeping them both. I didn't bother posting a K/R. There seems to be a lot of sizing wiggle room with pants that are so stretchy.
The ones I got were blue jeans with lace tux stripes and black jeans with a leather tux stripe. I had to replace a pair of tux ponte pants that wore out because I wore them so much. I decided that it was ok to sort of duplicate this style because I found myself wanting to wear them all the time. They are nice jeans.