Due to the many positive reviews I decided to buy, to wear socks in the hope that what they promise. Unpacked, attracted and after a few hours my calves ached. It is a blue red stripe has been formed. In about 3 mm wide and so constricted that I had to take off the socks. As socks are probably good, but "Diabetic Socks" call this product I think is misleading. If it were possible, there would be no stars from me.