The PhD Light Running sock from Smartwool is great for runners who prefer the highest degree of lightweight cushioning and performance. Featuring Smartwool’s new 4-Degree Banded Fit System, the PhD Micro Sock utilizes technology used in today’s athletic footwear to raise fit, feel and performance to unheralded levels. Showcasing WOW (wool on wool) technology in High Density Impact zones, the 10-310 helps reduce shock and absorption, helping you perform at your best. The PhD light running sock features Smartwool Fibers, which help provide excellent moisture, temperature and odor control. Strategic Mesh Zones are placed throughout the sock for maximum ventilation, while a 1x1 rib welt top holds the sock in place. New for 2008, the PhD Running sock is the ideal micro performance running sock for the serious athlete.
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Smartwool PhD Men's Running Light Micro Socks - Silver 
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