Smartwool Men’s Run Ultra Light Micro Sock


When it comes to Smartwool’s most comfortable running socks, they pull out all the stops to continuously make improvements to their products. With brand-new Shred Shield™ technology to help improve wear in the toe box, our PhD® Run Ultra Light Micro socks feature the 4 Degree™ elite fit system and the  Indestructawool™ technology for a dialed-in fit and improved durability.