Jobst Opaque Support Hose is made from an exceptionally soft multifiber yarn for a total smooth elegant look. This yarn offers a superior long lasting durability and easy to slide on access. The 30-40 mmHg offers a firm compression to help improve the blood flow and decrease swelling and bloods clots sometimes formed in the legs. Jobst Opaque Support Hose have a reinforced toe and a durable heel to provide a long lasting stocking. Available in a variety of different colors. Machine washable. Line dry. One pair per box.