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Information about SmartWool PhD Ultralight Micro Running Socks (For Men and Women)
2nds. Utilizing an ultralight merino wool blend with ReliaWool Technology in high-density impact zones, SmartWool's PhD Running Ultralight Micro socks are designed for mild weather and shorter distances.
  • ZQ itch-free merino wool is temperature regulating, moisture wicking and odor resisting
  • 4-Degree Elite Fit System uses two elastics for greater stretch and recovery to keep the sock in place
  • ReliaWool Technology in high impact areas provides long lasting protection
  • Flat-knit toe seam
  • Alternating 1x1 welt
  • No cushion
  • Limit 12 per year
  • Lightweight
  • Height: Ankle
  • Made in United States of America (yarn imported)
  • Visit our Wool Guide
  • US shipments only
Specs about SmartWool PhD Ultralight Micro Running Socks (For Men and Women)
  • Lightweight
  • Height: Ankle
  • Fabric: 54% merino wool, 42% nylon, 4% elastic or, 55% merino wool, 41% nylon, 4% elastic
  • Care: Machine wash/dry
  • Made in United States of America (yarn imported)
  • Visit our Wool Guide
  • US shipments only

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Most Helpful 5-Star Review

Verified Buyer Reviewed by Minnesota Mom from Minnesota on Sunday, August 31, 2014
I bought several pairs of these socks (albeit in more neutral colors) at a local store last year. I wear them all the time when exercising indoors or outside in warm weather. Glad to find them at STP for a great price.
4.640000 5 Based on 75 reviews: Overall:
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  • Verified Buyer Reviewed by Victoria from CA on Monday, August 10, 2015
    Very comfortable. I'm a fan of the Smartwool PhD series. They're lightweight and durable.
  • Verified Buyer Reviewed by shabbyblonde from deep south on Monday, August 10, 2015
    bought the XL which fit more like a Large. Very tight fit.
  • Verified Buyer Reviewed by cyclist from Indiana on Wednesday, August 5, 2015
    I am not a runner, but like a light weight sock for cycling and other exercise related activities. These socks feel great and were fine after being washed.
  • Verified Buyer Reviewed by Dedicated Runner from Washington on Tuesday, July 28, 2015
    These are the most comfortable running socks. Ultralight is the perfect weight all year round. I order these whenever I see them for a good price. Occasionally the sizes are inconsistent, but for the most part, they're great.
  • Verified Buyer Reviewed by Southwest shopper from Texas on Tuesday, July 21, 2015
    I am a SmartWool fan and love STP prices. These socks are my favorites because they are the ultralight Micro style. They are extremely comfortable and give support I want. Highly recommend.

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