PhD Run Graduated Compression Ultra Light

black sock

PhD Run Graduated Compression Ultra Light


Item # SW127
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Product Information


Make it an instant repeat with the powerful combination of performance-enhancing Merino and recovery-enhancing compression.  SmartWool has stocked these run socks with smart features like their 4-Degree™ elite fit system, mesh ventilation zones and a virtually seamless toe.

  • Virtually seamless toe
  • 20-30 mmHg graduated compression rating
  • 200-needle construction provides highest knit density while maintaining ultra light weight
  • 14″ overall height
  • Knit in USA of imported yarn


  • 4-Degree Elite Fit System: Uses two elastics for greater stretch and recovery to keep the sock in place
  • ReliaWool™™: Patented ReliaWool™™ technology in high impact areas provides superior durability
  • Mesh Venting: Women’’s-specific mesh ventilation zones provide additional breathability and moisture management.
  • Graduated Compression Ultra Light Cushion: Minimal cushioning for maximum next-to-foot performance without added bulk; graduated compression to reduce fatigue and speed recovery.
  • PhD®: Built for Performance in the Highest Degree

CONTENT:  49% Merino Wool, 42% Nylon, 9% Elastane


  • Machine Wash Warm Gentle Cycle.
  • Do Not Bleach.
  • Tumble Dry Low.
  • Do Not Iron.
  • Do Not Dry Clean.

What you get from SmartWool isn’t just a product;  it’s the ability to do more of what you love, in extraordinary comfort.  SmartWool combines high-performance Merino with state-of-the-art technology to create products that power you through your great adventures and keep you comfortable all along the way.  Go far.  Feel good™



Ultra Light Cushion, Made in USA


Merino Wool, Nylon


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