Model Number:

SmartWool PhD Graduated Compression Light Socks feature dense cushion pads under the forefoot and heel for protection and comfort, while merino wool naturally helps manage moisture, temperature and odor on-the-run. Graduated compression of 20-30 mmHg stimulates blood circulation to decrease muscle recovery time, and Smartwool's updated fit with enhanced stretch feels comfortable every time you slip them on.



  • Pair of compression socks
  • Medium thickness, half-cushioned sock under heel and forefoot to absorb impact and increase comfort
  • 20-30 mmHg graduated compression to enhance blood flow, support muscles during exercise, and decrease post-run muscle recovery time
  • 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 with increased durability
  • SmartWool® natural properties help wick moisture, manage temperature and odor better than pure synthetics, helping keep you dry and comfortable
  • Strategic mesh zones for ventilation
  • Virtually seamless toe increases comfort
  • 14" tall over-the-calf cut


  • 50% Wool / 40% Nylon / 10% 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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