Circulator Compression Socks

I've tried many compression socks/stockings for long haul flights and they have always cut into my upper leg. Much less being next to impossible to put on. These are easy to put on and did not cut into the upper part of my leg as the tops are loose, but the socks stay up.. I wear a 6.5-7 shoe and the S/M was perfect for me. I only brought 1 pair with me for a 3 week trip as I had only intended to use them for flights, however, I needed them almost everyday during the trip. They held up perfectly, and washed well. I'm a huge convert to this brand and to this compression sock for all my travels, especially if cobble stones are involved. These are the 15-20 compression socks. Sockwell makes a higher compression sock but that would be too much for me.