ARCH SUPPORT: Designed to match contour of your foot for better support and fit STAY UP TOP: Spandex fibers help keep the sock from sliding down on your food during wear SMOOTH TOE SEAM: Sewn at the toe in a way that does not agitate or irritate your foot Columbia socks provide style, comfort, and support for your every day activities. With a smooth toe seam, arch support for better fit and a stay up top, these socks won't keep you down in you every day life.