Made with premium cotton and 200-needle count for flexibility and comfort. The socks offer mild-moderate compression (15-20 mmHg) - appropriate for all day, everyday wear. Compression level: 15-20 mmHg Material: 48% Cotton, 42% Nylon, 10% Spandex (Latex-free) Women’s shoe : 8.5 - 11.5 Men’s shoe: 7 - 10 Calf Circumference: 13” - 17”