If you have venous disease or edema, you may want to aim for compression socks with 30 to 40 mmHg of compression—and if you need more than that, your doctor can prescribe even firmer socks.

The level of compression is measured in millimeters of mercury (mmHg) and can range from mild (8-15 mmHg) to extra firm (30-40 mmHg). The material should be breathable, moisture-wicking ...

exert 30 to 40 mmHg of pressure However, you may need a customized compression sleeve if your doctor prescribes a higher pressure, such as: Class 3 sleeves (usually custom ordered): exert 40 to 50 ...