This is a brand new style that appears quite simple and is actually quite unique.
The socks come with the garters and have little loops at the top to keep them in place. They tighten with the help of D-rings and although I thought they'd be more for looks than function, my pair functioned quite well. I could wear them as over the knees, but I do think knee high is more realistic, they are labeled as a knee high after all.