Graduated Gradient Compression Design, 100% pressure at ankle and compression lessens gradually up to calf (70%) and thigh (40%) * 3-D design, perfectly fit your leg * Reinforced toes and heels, relief for tired aching legs and prevent thrombosis * High-elastic mciro fiber are delicate, soft, velvety, stronger and do not rub at heels to make them sore * 20-30 mmHg Therapeutic Support