Smartwool PhD Outdoor Medium Crew Socks


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Our PhD Outdoor Light Medium features Reliawool Technology for improved durability in the high wear areas and the 4-Degree Elite Fit System, to keep the sock in place and giving you all-sport versatility.


  • Knit in USA of 72% Merino Wool, 26% Nylon, 2% Elastane
  • 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
  • Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management
  • Flat knit durable toe seam for high burst strength
  • 2x1 ribbed welt
  • 1x1 ribbed leg
  • 8.5" overall height

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Review Summary

4 out of 5

2 Reviews

  • Build quality: 1
  • Ease of use: 1
  • Great design: 1
  • Great value: 1

Comfort: 4.5 / 5
Quality: 4 / 5
Durability: 3 / 5
Fit: 2 / 5

2 Ratings & Reviews

Comfort: 5 / 5
Quality: 5 / 5
from NW Connecticut
55-64 yrs

Best Socks Ever
December 25, 2012

I bought a pair of these at a store in a very upscale neighborhood and immediately fell in love with them. I went on Altrec and found them for 30% less (regular price, not on sale!) and ordered 3 pairs on the spot. Price, quality, fit and delivery were all best-of-class. Now I've ordered some snow boots to go with them, and I can't wait to go outside this winter with warm feet!!

Pros: Great design, Build quality, Ease of use, Great value
Comfort: 4 / 5
Durability: 3 / 5
Quality: 3 / 5
FitClothes: 2 / 5

Are they thinner and smaller now?
December 28, 2012

Let me start by saying that I bought my first pair of PhD Smartwool socks here on Altrec and absolutely loved them. I ordered 3 more pair recently of the exact same type I had before because they were on sale. They new socks appear to be thinner and "smaller" than the ones I bought a year or two ago. Maybe something will happen after I wash them a few times but for now it appears the quality has slipped a bit. Still an excellent sock but for this price I want to be blown away.

Also Available

Smartwool PhD Outdoor Medium Crew Socks Photo

Charcoal, Chestnut, Espresso, Forest and Navy.

Available sizes, while supplies last, include size medium, size large and size extra large: m, l, xl.

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