The 1000 mile tactel race mens running socks not only give you a soft and cushioned feel but also offer heel power technology to hold your feet firmly in place for an improved grip and no slippage even at faster speeds moisture is quickly moved away from the feet due to tactel inner layer that keeps you cool and fresh whereas top vents provide great breathability and temperature regulation for added comfort for a more supportive fit the socks have an arch brace and they are machine washabl