I have been doing quite a bit of metal work lately and needed to upgrade my work attire.  They are very comfortable.  I wear a 34/30 and ordered a 36/30 because I heard you are supposed to size up.  I do not have a HUGE gut, but a little bit of one, and it is a little snug up top with everything buttoned down.  The legs are also a little more baggy than I would like.  I get that they are baggy for better movement, or if you want to throw some layers underneath, but the look throws me off a bit.  Still a great product though.