Class 1 compression stockings are light compression and exert an ankle pressure of 14–18 mmHg. Class 2 stockings are medium compression and exert an ankle pressure of 18–24 mmHg. Class 3 stockings are high compression and exert an ankle pressure of 25–35 mmHg. Class 2 level stocking are usually used to Improve Blood Circulation, Varicose Veins, Swollen, Aching Legs, for Pain Relief and Edema. They are gender neutral and can be used by both Men & Women. Class 3 stockings can be used for chronic venous insufficiency, post-thrombotic venous insufficiency and in the treatment and prevention of venous leg ulcers.