Mueller Recovery Compression Socks help relieve leg pain and swelling from fatigue. Recommended for travelers, active adults, and athletes. The firm graduated compression (20–30mm Hg (CCL 1) is ideal for moderate leg and ankle swelling. Helps improve blood flow through veins for increased oxygen to muscle tissues. Aides in reducing lactic acid buildup in legs during exercise. Precise sizing for optimal comfort and fit for all-day wear.