Therafirm Unisex Mild Support Thigh High Stockings are designed to improve circulation, relieve tired, heavy, aching legs and prevent mild 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 Unisex Mild Support Thigh High Stockings Feature: 15-20mmHg (the mean compression for an average ankle size) Fashionable semi-opaque knit Self stay silicone dot band - no garter belt necessary Sheer, reinforced toe and heel 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 Be sure to use the size chart and measuring instructions to determine best size and fit. Gradient compression hosiery is constructed differently than traditional hosiery. Those who have never worn gradient compression before may feel that these garments are difficult to put on or tighter than traditional hosiery. It is this "snug" fit that provides the graduated pressure. It is very important to measure the ankle, calf, and sometimes thigh to ensure a proper fit and to receive the benefits of the graduated compression.If pain, discomfort, or areas of binding occur, the stockings should be removed immediately. Always consult with your physician before wearing gradient compression garments.