These woven socks provide 8-15 mmHg of graduated mild compression that helps improve blood flow to energize your legs whether you're working out, traveling or on your feet all day. Beautiful, supportive and comfortable. Polka dot socks are 48% combed cotton/42% nylon/4% other; striped socks are 57% nylon/23%cotton/6% spandex. Both machine washable. Imported. One size fits women's 9-11. Choose from Turquoise Polka-Dots, Burgundy Polka-Dots, Black Stripes, or Teal Stripes.