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 improve circulation and valve functioning. 15-20 mmHg compression. Medium fits: 8" - 8-3/4" ankle, 12"-15" calf, 29"-33" thigh length. Directions: A healthcare professional should be consulted to evaluate, diagnose and recommend appropriate compression therapy. Care: Wash gently with mild soap or detergent in lukewarm or cold water. Do not wring or twist. Rinse until water is clear. Roll in towel to remove excess moisture. Dry away from heat and sunlight.