In this Invisible 3-Pack, you get three pairs of no-show, low-cut socks spun from the softest fibers and built with ultra-lite cushioning. Every pair sports hidden silicone grippers to prevent heel slip. For tried-and-true basics that are anything but...well...basic. FEATURES - Silicone Gripper For No Heel Slip - Ultra Lite Cushion - Arch Support - Seamless Toe Closure PRODUCT CARE - Machine Wash in 40 °C / 104 °F. - Avoid Bleaching or Ironing the socks. - Socks will last longer if you keep them out of the dryer.