80% Cotton, 15% Polyester , 3% Nylon, 2% Spandex. Fits sock size: 10-13 US / show size: 6-12. Package contains 10 pairs of socks. Reinforced heel and toe construction. Moisture Management: 80% cotton material provides breathability and sweat absorption for sports and athletic activities. Premium Thickness: 30% thicker and heavier than regular socks for superior comfort and performance.