The Dr. Motion Copper Infused compression sock offers mild compression (8-15 mmHg) with the added health benefits of having anti-microbial & anti-odor copper ion infused in the heel, toe, & sole. Cooper delivers anti-inflammatory properties, promotes healing & softer skin. This compression sock features a smooth, reinforced toe that maintains optimal comfort & durability. Contents: 85% Microfiber Nylon, 11% Polyester Copper, 4% Spandex. These are sock size 9 to 11 (women's shoe size 6 to 10).