For moderate and more severe symptoms: The SIGVARIS MEDICAL collection is designed to ensure correct fit and accurate compression, resulting in optimum therapeutic benefits and greater wearing comfort. SIGVARIS MEDICAL products are designed to fit various lifestyles and are best suited for those with chronic venous disorders, edema, stasis, skin changes, and for those who have had or will be having a vein procedure. Features: Lasting microfiber softness without chemical additives Comfortable wide Top Band prevents Knee high from rolling Advanced moisture management keeps legs cool and dry Double-covered inlay yarns for ease of donning and removal Fiber Content: 79% Nylon, 21% Spandex