Compression Socks Copper Wear Knee High Socks (L/XL) Imported PREMIUM MATERIAL - Polyamide 80%, spandex 20%, high quality breathable and durable fabric, allows our copper compression socks to be good elasticity. SIZE L/XL - Suitable for women feet size 9-13 and men 8-11.5. COMFORTABLE DESIGN - Black primarily and silver in plantar, simple but decent. Closed-toe design helps reduce toe chafing. SOUND EFFECTS - Imported first class copper fabrics, help to reduce swelling, relieve aches and pains, boost circulation, anti-fatigue. Perfect for those who have to stand for a long time, such as teacher and nurses, waitress and waiter, etc. DURABLE CONSTRUCTION - Computer-controlled manufacturing process to ensure that all compression knee high socks that we provide are what you need. Put the idea that a little pressure is good for leg fatigue relief into the design of our copper support socks.