Ⅰ. Black calf compression socks are made using a special technology with graduated compression. The mesh fabric in the socks provides different pressure in specific areas; for example, the highest pressure is felt at the ankles, and the compression decreases as you go up. Ⅱ. These compression socks help improve blood circulation, which is why they are recommended for venous disorders. They are also effective in reducing the feeling of heaviness and fatigue in the legs. Consistent wearing of socks can help prevent venous valve insufficiency or delay it. Ⅲ. These socks are useful for pregnant women, travelers or those who are in one forced position for a long time (standing/sitting work). Thanks to the dynamic compression effect, they provide a pleasant feeling of lightness. Ⅳ. Recommended: primary and secondary varicose veins, varicose veins during pregnancy, vein sclerotherapy, after vein surgery, after superficial thrombophlebitis, deep vein thrombosis, post-thrombotic syndrome, thrombosis prevention in outpatients, chronic venous insufficiency grade I-III, prevention of venous ulcers, lymphedema, edema during pregnancy, post-traumatic edema. Ⅴ. Size M: Free length 27cm, stretched length 43cm. Free width 20cm, stretched width 30cm. Ⅵ. Size L: Free length 28cm, stretched length 50cm. Free width 32cm, stretched width 50cm.