The Smiley Hearts patterned compression socks are engineered using a 200 needle count construction. This results in a long-lasting compression sock that provides advanced compression in the areas you need it most. Veins, arteries, and muscles are squeezed gently, moving the blood up towards the heart, preventing blood from pooling in the feet. Compression socks apply the most pressure at the ankle and gradually less as they go up the leg. Our socks use a moderate compression level of 10-14 mmHg which is the most versatile and is perfect for everyday use.