NY Times Wirecutter: The Best Compression Socks
"Why we like them: The best thing about Vim & Vigr is the incredible variety of options it offers, including more fabric choices, more compression levels, and more size options than those offered by any brand except Comrad...
In addition to cotton, you can choose a sock in nylon or a merino blend. There are three compression levels, including medium (15 to 20 mmHg), firm (20 to 30 mmHg), and extremely firm (30 to 40 mmHg), a level typically prescribed by a doctor, rather than worn casually. There are six sizes, including S, M, L, plus wide-calf versions of each, up to 21 inches (the largest width out there). And among the medium-compression options, we counted 41 different colors and patterns—more than offered by any other brand we recommend."