Although I'm not diabetic, diabetic socks are the best type for my foot problems [ingrown toenail, neuroma & occasional, overheated feet].  These are the most comfortable socks I've ever worn.  The only negative [which is why they get four stars] is that they run a little large and sometimes stretch out while being worn, requiring me to remove my shoe and adjust my socks.  The socks do not irritate my feet nor do they cause excessive heat, which does result when I use cotton diabetic socks.  Anyway, they're a "keeper."  I wish that they were available in more colors and weren't so costly for each pair.