This is the best quality you can find in this price range. The rich cotton material provides comfort and durability. These socks contain just enough spandex to last through a growth spurt. You get 12 pairs per pack. Choose from white, navy, and black colors. Available in sizes small to x-large. Generally, size small is to fit preschooler/kindergarten students, size medium is to fit grade school students, size large is to fit middle school pre-teens, and size X-large fits high school students (up to adult shoe sizes). Fabric Content: 65% Cotton, 25% Polyester, 10% Spandex. Machine wash, tumble dry low.