Smartwool PhD Pro Mountaineer Socks

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Made for those obsessed with all things ice and heights, the Smartwool PhD® Pro Mountaineer socks keep your feet comfortable as you hang, clip and climb your way to the summit.

  • Features

    • Indestructawool™ technology features a wool-based, patent-pending yarn and construction method for exceptional durability and comfort
    • 4 Degree™ elite fit system with flex zone at ankle joint offers full range of motion; Achilles strap provides extra protection and warmth
    • 20-30mmHg graduated compression rating means these help manage swelling for all-day comfort and aid in post-activity recovery
    • Virtually Seamless™ toes won't chafe

    Made in USA.

    View the Smartwool PhD Product LineView all Smartwool Men's Hiking Socks
  • Technical Specs

    Best Use



    49% merino wool/43% nylon/8% elastane

    Sock Height


    Sock Cushioning

    Light Cushioning



    Moisture Wicking




  • Size Chart

    U.S. Men's3 - 5.56 - 8.59 - 11.512 - 14.5
    U.S. Women's4 - 6.57 - 9.510 - 12.5
    EU34 - 3738 - 4142 - 4546 - 49

    Sizing Notes

    For socks, please use shoe size.

  • Reviews
    17 reviews with an average rating of 4.8 out of 5 stars

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