Medical compression stockings with intensity of 15 to 20 mmHg. Made of opaque elastane, polyamide and silicone fabric. Promote blood return and relief of symptoms of moderate venous disorders. Slate colour. Size 4 normal for calf circumference from 40 to 47 cm. Suitable during pregnancy, postpartum, prevention of venous thrombosis and varicose veins greater than 3mm.