Incrediwear Diabetic Porcelain Polymer Ankle Diabetic Sock blend 68% polyester porcelain polymer, 32% spandex Porcelain polymer in a quality 3-D weave design to provide maximum blood flow and heat retention to reduce swelling and regulate temperature High comfort 200 thread count in anti-microbial blend to wick away moisture Wash warm, tumble dry low, do not bleach, do not iron, do not dry clean. Taiwan