Mild compression for tired & aching legs, swollen legs, minor fatigue, minor heaviness. Graduated compression has been proven effective in the prevention and treatment of venous disorders. The compression of the hosiery is greatest at the ankle and decreases as it moves up the leg. Graduated compression helps to improve circulation and valve functioning. 20-30 mmHg compression. Latex free. Medium fits: 4'11" height - 135 lbs; 5'0" height - 130-145; 5'1" height - 125-160 lbs; 5'2" height - 120-145 lbs; 5'3" height - 115-140 lbs; 5'4" height - 110-135 lbs; 5'5" height - 105-130 lbs; 5'6" height - 110-125 lbs; 5'7" height - 110-120 lbs. Product Benefits.