Think Medical's Tie Dye Premium 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. 10-14mmHg Gradient Compression 200 Needle Count Compression Energize tired legs Reduce muscle strain and Relieve varicose vein discomfort Prevent swelling Non-restrictive comfort top Built-in arch support Ideal for everyday wear Fits Women's Shoe Sizes 10-12 Fits Calf Size 14"-18" Machine wash warm.  Tumble dry low. Do not bleac