Sigvaris transparent medical compression socks are a superior quality product. The fibers from which this item is made have high performance, strength and durability. Its high filament and polyester content, blended with cotton, help repel moisture and keep foreign particles away from the skin. It is made from synthetic and natural fibers and does not contain any animal components. This product prevents DVT, swelling in the legs and blood flow problems. The compression of these Sigvaris socks is 30 to 40mmHg, so its precision and fit are superior. It is designed for women who are subjected to great efforts or who walk a lot in their day, as well as for those who suffer from blood flow problems.