sock size 9-11, fits shoe 6-9 * 70% acrylic 20% nylon 10% spandex * choose between a 6-pack 1 pair of each color, or a 12-pack 2 pairs of each color * all 6-packs are $7.99, $1.33 per pair, all 12-packs are $12.99, $1.08 per pair * machine wash warm, tumble dry low