I am 5'6" and 180 pounds and I wear a 12-14.  I ordered these in a 14 and they fit well through the hips, thighs, and legs.  They are wrinkle resistant and didn't grow throughout the day.  I was comfortable in them all day at work.  The only reason they didn't get 5 stars was because I felt like they were slipping the waist.  The material is thick, but still comfortable.  They have a lot of stretch to them.  The style is on trend.  I would recommend them.