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You spent an obscene amount of money on those fancy running shoes, so why would you run in  a pair of cheapo socks that eliminate any good that the shoes are doing for your feet. The Smartwool PhD Running Ultra Light 3/4 Crew Sock has an advanced degree in comfort and support to work with your high-dollar running shoes and provide increased performance with reduced fatigue.

  • Elasticized arch brace for added support
  • Flat knit toe seam eliminates chafing and irritation caused by toe seam
  • Wool-on-wool system adds an extra layer of wool to the heel and toe areas for shock-absorption and durability
  • Made with odor-reducing New Zealand Zque Merino wool
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