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Thin and lightweight, SmartWool PhD Toe Sock Mini's feature an individual toe design and technical merino wool blend to help move moisture, prevent odor and regulate temperature naturally. The Ultra Light thickness features no added cushion underneath, yet is durable and protective thanks to high-density fibers at the heel and forefoot.


  • Light Gray (039)


  • Medium-thin sock with no added cushion underfoot
  • Individual toe design helps move moisture and prevent blisters between toes
  • Arch band and deep heel provide performance fit
  • 4Degree Elite Fit System combines 2 elastic types paired with wool for greater stretch that improves performance fit
  • ReliaWool Technology at High Density Impact Zones reduces shock and abrasions while increasing durability
  • Mesh zones for ventilation and comfort
  • SmartWool inside for natural moisture, temperature and odor control
  • 3.75" tall quarter-cut


  • 57% Merino Wool / 40% Nylon / 3% Elastane

Sock Performance Characteristics

Sock Thickness What's this?

  • Extra Thin
  • Thin
  • Medium
  • Thick
  • Extra Thick

Sock Height What's this?

  • No Show
  • Low
  • Quarter
  • Crew
  • Knee High

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