I have purchased a few different pairs of these when they have been on sale.  As other reviewers have noted, there is a difference in fit, depending on the fabrication--so I have returned two pairs.  I like the fact that these are slim-fitting without being super skinny.  Size 30 fits me well in other Calvin Klein jeans, but I prefer the 31''s in this style.  I'm thankful that Calvin Klein still makes some fantastic jeans.