Sigvaris Opalis 2 Ultramarine blue compression socks normal TM. They are not like normal socks, as they have to be recommended, tested and measured by professionals. The design of these garments allows pressure to be exerted around the ankle and decreases as it moves up the leg. These are normal compression stockings and of normal size. On the other hand, the function of these garments is to gently squeeze the legs and allow better blood circulation in that area. Also, the use of these stockings helps to keep the legs healthy, prevents the feeling of heaviness, pain, swelling and the formation of blood clots after an injury or a time of inactivity. The stockings are recommended for daily use, the color is ultramarine blue and this model is for women.