The Experia X SPEED Ultra Light Cushion No Show Tab with Rocket Grip is a thin sock for running. The low height features a tab at the back to protect the Achilles against your shoe, allowing you to focus solely on your pace. The recycled fabric blend wicks sweat away from the skin, and dries fast to keep feet comfortable. Featuring right and left anatomical fit, plus Rocket Grip technology, keeping the sock in place all day long.