Knee-high graduated compression socks for runners, workers, and travelers. Support your "second heart." Your calf muscles pump blood back to your heart with every contraction. When you run, stand all day, or sit on long flights, this system gets tired. Blood pools in your legs, causing swelling and fatigue. Graduated compression helps. Tighter at the ankle, gradually looser toward the top, assisting blood flow back to your heart. Helps reduce foot fatigue and swelling while supporting healthy leg circulation. Browse vibrant designs at outway.com and start recovering smarter.