The first pair I tried were "The Sock Doc" diabetic tube socks that came in a mixed color three pack. The first thing I found was that you literally you cannot feel the seam in these socks. You can see the seam but when you put them on you feel nothing. The Sock Doc's had a downfall and that was they were what I came to know from watching Mel Gibson as "quitters." That is when your sock does not stay up and it falls down. Of course all tube socks do that but these socks just did it a little too much for me and too fast. Everything else was great with the sock and having the no constriction at the top really does help keep your feet from swelling. I give "The Sock Doc" 2.5 syringes for the "quitter-ness" they posses on my patented diabetes camping syringe scale.
Now I am still on the search for either a synthetic sock or a murano wool sock that qualifies or is recommended by the manufacturer for diabetics to wear camping and hiking. I was talking to Tim the general manager of Backwoods on Saturday about diabetic socks and that the only ones made are cotton. The first thing he said about cotton was "cotton kills." Now I personally don't take it that far but, cotton is comfortable as a plus but it is hard on every other aspect of camping outdoors. He and I thought for a bit why none of the high end murano wool companies had or would recommend their socks for camping and hiking. The only thing we could think of is that the seams are too hard to qualify them as "diabetic" socks.
I definitely would recommend these socks of you are in town and doing light to medium walking in an active environment.