Compression stockings provide controlled compression to the legs to squeeze away abnormal back flow of blood into the superficial veins that lie just beneath the surface of the skin from the perforating veins. It is used in all forms of venous disease including blood pools or congests in legs. Severe varicose veins and discoloration to sores, ulcers and potentially life-threatening blood clots. Made from soft nylon yarn and spandex : Strong and durable, dermophillic, optimal compression, excellent aesthetics and excellent color fastness. Four-way stretchability : Offers optimal compression and snug fitting. Double layered : Retains body heat effectively, provides therapeutic warmth, quicker healing, strong and durable. Tapered shape and controlled compression : Uniform compression even on uneven limb surface, offers graded compression high to low from toe upwards and effective blood evacuation. Open toe design : Reduces wear and tear, easy to wear.