Back To Top
Skip to main content
Smartwool PhD® Run Ultra Light Micro Socks

Smartwool PhD® Run Ultra Light Micro Socks



Please select a size
Please enter valid quantity

Buy From An Online Dealer

The color/size of the product you selected is currently unavailable. Either select a different color/size, or purchase through one of our authorized online dealers below.

notify me when available

Please enter your email so we can alert you when the Smartwool PhD® Run Ultra Light Micro Socks in is back in stock. We promise not to spam you. You will only be notified once.

You will earn 179 PeakPoints with this product
Members Earn 179 PeakPoints LEARN MORE
Lifetime Guarantee

Our products are fully warranted against defects in materials and workmanship with a lifetime guarantee. Exclusions apply*. See Details

Free Returns

Now offering free online returns on all orders shipped to Canada.


We put all of our smarts into these new and improved run socks that feature our 4 Degree™ elite fit system, Indestructawool™ technology for superior durability and a virtually seamless toe. Men’s-specific mesh ventilation zones provide ultimate temperature and moisture regulation where male runners need it most.


  • Ultra Light Cushion
  • Indestructawool™ technology
  • Sock Height: Micro
  • 4 Degree™ elite fit system
  • Body mapped mesh zones
  • Virtually Seamless™ toe
  • Achilles tab

Product Specifications

48% Merino Wool, 48% Nylon, 4% Elastane
avg weight:
0.98 oz