Jobst for Men dress socks have a reinforced heel, ribbed design, all-day comfort top band, smooth toe seam and are available with a closed toe. Tall sizes are designed to fit a shoe size of 12+, and are available in black only. These stockings provide 15-20mmHg of gradient compression to help improve blood flow, prevent mild edema (swelling), and reduce the discomfort caused by minor to moderate varicose veins. Woven from 76% nylon and 24% spandex fibers in the USA.