Improve circulation, reduce swelling—and look good doing it, too. These energizing knee-high socks offer graduated compression of 15–20mm Hg and come in appealing graduated hues. Nylon/spandex; machine wash. Imported. Unisex sizing: S/M (women’s 4.5–8; men’s 3–6.5) or M/L (women’s 8.5–13; men’s 7–11).