What do the different classes of hosiery mean?
Stockings, socks and tights that can be prescribed by your doctor or nurse fall into three classes: 1, 2 and 3. These numbers relate to increasing levels of compression, with class 1 being the lightest compression through to class 3 being the strongest. The class your doctor or nurse chooses to prescribe for you depends upon how severe the problems in your leg veins are and how much help they need.