When it comes to running socks, Smartwool pulled out all the stops to keep improving its products. With brand-new Shred Shield™ technology to help improve wear in the toe box, these PhD® Run Ultra Light Pattern Micro socks feature the 4 Degree™ elite fit system and Indestructawool™ technology for a dialed-in fit and improved durability.

Smartwool Men's PhD Run Ultra Light Pattern Micro Socks

  • Large Mens 9-11.5

    XL Mens 12-14.5

    • 50% nylon/45% wool/5% elastane
    • PhD®: Built for Performance in the Highest Degree
    • 4 Degree ™ Elite Fit System: Uses two elastics for greater stretch and recovery to keep the sock in place
    • Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort
    • Multi-sport design
    • Ultra Light cushioning
    • Body-mapped mesh ventilation zones
    • Virtually Seamless™ toe
    • Shred Shield™ technology, Smartwool's newest technology, reinforces the toe cap with minimal cushioning. The result reduces excess friction from the toe and around the toenails and increases durability three times
    • ReliaWool Technology, added to high-impact areas, provides longer-lasting protection to keep feet comfortable.
    • Made in USA of Imported Yarns
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