These sock hose are excellent. They improve blood flow in an injured leg of mine that is prone to swell.I have tried other stretch hose but none so effective as these medical type 30-40 mmHg graduated.The mm is a measurement standard that stands for the millimeters of mercury and indicates the level of pressure. The graduated pressure is in this specification a low of 30 at the top of the sock and the high of 40 at the foot. Of course I had no way to tell if the advertised specification was present, but by the visual result of only one full day of wearing the aid, I am convinced that it was performing well within the parameters.They work fine for me. Are easy to hand launder, and they dry quickly.Price wise, they might seem a little high for one pair of socks, but it is results that you are seeking not quantity or odor reducing copper fibers. Those socks are also compression but for my needs these socks are better.These are real compression hosiery. They do the job. I found them to be comfortable, and yes, they look good on my leg when my pant leg creeps up. Nothing is evident that you are wearing a compression stocking.I am giving them a resounding Five GIANT Stars because they are well made, work as they should..and the results contribute to the overall value and rating.Get them, you wont be disappointed. Be sure to pay attention to the sizing chart when ordering.