Therafirm Firm Support Knee High Stockings for men and women are designed to improve circulation, relieve tired, heavy, aching legs, and prevent moderate swelling. True gradient compression delivers a controlled amount of pressure greatest at the ankle and gradually decreases towards the top of the stocking to promote better blood flow. Therafirm Firm Support Knee High Stockings Feature: 30-40 mmHg (the mean compression for an average ankle size) Fashionable semi-opaque knit Soft comfort band is non-restrictive while staying in place all day Reinforced toe for durability Two-way stretch nylon and spandex blend Micro-Cool process wicks away moisture, providing a comfortable coolness Hand wash in lukewarm or cold water with mild detergent. Lay flat to dry. 100% USA Made Also available in open-toe style Be sure to use the size chart and measuring instructions to determine best size and fit.