New Mediven Sheer & Soft are the sheerest medical compression stockings on the market. SilverPlus for prevention of uninhibited multiplication of bacteria on stocking surface FIRM COMPRESSION (20-30 MMHG) Heavily, fatigued, aching legs. Mild varicose veins with minimal edema. Mild varicose veins during pregnancy. Prevention or management of DVT.Fabric Content: 55% Nylon (Polyamide)/ 45% Spandex (Elasthane)/LATEX-FREE. Size III. Please refer to size chart ankle, calf, thigh measurements.