UPDATED: The sides of these pants have a slight stretch section that, after wearing both pairs I purchased, pokes/digs into your sides. They LOOK great but the pinching to my sides is kind of annoying after 3-4 hrs of working.
I agree with other posts that the waist is a bit snug. I guess I got used to my other Haggar pants that have some flexibility to them. These are more designed for the slim, executive look. They are not a loose fit at all. But, if I was 20-30lbs lighter, they might fit better. If you order a 42 waist, they should fit a little looser in the waist. I ordered 42 when I normally wear a 40 and these were still snug.
Both the Khaki and Black ones look great but fit snug.