Off the track and into a PR, the retro-styled Men's Grit run sock tips its headband to baton-passing champions of the past and wins the future with Merino Wool performance. Built with targeted flex zones and a non-slip fit that runners love, this sock's always got your back. From single track scrambles to road sprints, the Grit is what you need to push through to the finish line. Men's Grit Micro Crew Ultra-Lightweight