Smartwool: Men's PhD Running Ultra Light Micro

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Our Price: $15.95

Arctic Blue  -  LG     IMS#: 690335
Black  -  LG     IMS#: 587800
Black  -  MD     IMS#: 690336
Black  -  XL     IMS#: 690337
Bright Red  -  LG     IMS#: 678615
Orange  -  LG     IMS#: 587798
Silver  -  SM     IMS#: 565204
Silver  -  MD     IMS#: 565205
Silver  -  LG     IMS#: 565206
Silver  -  XL     IMS#: 565207

Color: Arctic Blue

Arctic Blue

Color: Black


Color: Bright Red

Bright Red

Color: Orange


Color: Silver



Smartwool's ultra light cushioned PhD Running Ultra Light Micro is the perfect running sock for mild weather and shorter distances. Thanks to WOW technology in high density impact zones, shock and abrasion are reduced. The 4-Degree Fit System also keeps the sock in place. Made in the USA of New Zealand Zque™ Merino wool.


  • New 4 Degree Elite Fit System uses two elastics for greater stretch and recovery to keep the sock in place
  • Patent pending ReliaWool Technology in high impact areas provides the longer lasting protection to keep feet comfortable Low profile and durable virtually seamless toe
  • Alternating 1x1 welt
  • Single layer 1x1 ribbed top
  • Cushion: Ultra Light
  • Knit in the USA


Fabric:52% Merino Wool, 44% Nylon, 4% Elastane
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