for the past 6 months every night that I work my ankles swell so big that when I actually TRY to get out of my chair I can't feel my feet. I had an appointment at the Dr. due to my infection on my foot (from a cut). My appointment. was right after work. My feet, ankles and even shin's were so swollen. He pushed in and left a big, deep dent in me. Was sent to get a certain compression sock. Didn't know all the different kinds they have, luckily I was given a certain one. Wore it last night for the first night. NO swelling. None. I can actually feel my feet again. (now if they could only fix that pain! lol) I don't quite understand how these socks work. Why they don't cut off the circulation rather than do the opposite. Regardless, I am very happy with my socks.