Now onto those abundant choices. 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 mm Hg), firm (20 to 30 mm Hg), and extremely firm (30 to 40 mm Hg), 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 20 different colors and patterns. Overall, there are more options than offered by any other brand we recommend.
