The Calvin Klein Women's No Show Liner Socks are a popular choice for back-to-school socks on Amazon. These socks are made from a blend of polyester, cotton, and spandex, which provides a comfortable and stretchy fit. They feature a no-show design, making them perfect for wearing with sneakers or low-cut shoes. The socks have a cushioned footbed for added comfort and support. They also have a moisture-wicking technology that helps keep your feet dry and cool throughout the day. These socks come in a pack of six and are available in a variety of colors, so you can mix and match them with your back-to-school outfits.