The Smartwool PhD Running Ultra Light Micro Socks can go the distance without weighing you down. Combining athletic science and SmartWool quality, these PhD socks are some of the best athletic socks out there. These lightweight micro socks feature SmartWool cushioning in the critical impact zones for added protection and durability. The PhD Running Ultra Light Micro Sock was designed with SmartWool's 4-Degree Fit System, which works with the mechanics of the athlete's foot and has exceptional fit in critical areas. The SmartWool PhD Running Ultra Light Micro Socks are perfect for those short to mid-length runs both on and off the trail.
Smartwool PhD Running Ultra Light Micro Socks Closeout Key Features
Padded Achilles tab for protection and secure fit
High Density Impact Zones to reduce shock and abrasion
Strategic Mesh Zones for maximum ventilation
4-Degree banded fit system for all day performance fit
SmartWool inside for moisture, temperature, and odor control