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  • SmartWool - 3/4 Back
  • SmartWool - PhD Outdoor Mountaineer Sock - Medium Gray
  • SmartWool - 3/4 Back -

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  • SmartWool - PhD Outdoor Mountaineer Sock - Medium Gray

SmartWool PhD Outdoor Mountaineer Sock


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    • Medium Gray

    3 Reviews


    To the summit.

    Shoulder your pack and head for faraway alpine ascents with Smartwool's Phd Outdoor Mountaineer Sock covering your ten irreplaceable toes. Rather than risking hot spots, blisters, or worse during your trip, trust the efficient blend of merino wool, nylon, and elastane fibers in the sock to wick moisture away from your feet as you sweat in cold conditions. Smartwool specifically shaped the low-profile leg portion of the sock to sit cleanly under mountaineering boots, while adding 20-30 mmHG of graduated compression throughout the sock to encourage healthy circulation.

    • Mountaineering-specific sock made for demanding ascents
    • Merino blend wicks moisture while insulating
    • Plush toe and heel areas add cushion to wear-prone areas
    • Graduated compression encourages circulation and recovery
    • Item #SWL00N3

    Tech Specs

    50% merino wool, 49% nylon, 1% elastane
    Recommended Use
    hiking & camping
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Comfortable and stay in place

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'3"
    • Weight: 120lbs

    These socks are very comfortable. At first I was a little worried that they were too tight, as they seem to have more compression than other ski/mountaineering socks I've worn (or maybe I have large calves for my size, ha). But after wearing them all day, I didn't notice them feeling too tight. They also stay put and are warm for their thickness (they are surprisingly thin, but still warm). They fit nicely (though snug) and appear to be very durable. I use them snowshoeing and for running outside in the winter. I really like the colors, too (bright orange/light blue).

    Very nice

      I like these. The bottom has extra padding but the rest is fairly thin which I like. It fits very snug and doesn't slip nearly as much as most ski socks. The compression is noticeable. I think these are a better sock than the stance ski socks, more compression, don't wear out, but the selection isn't comparable and they cost a lot more. I'd definitely buy more if they were on sale.

      Overpriced, but good compression

      • Familiarity: I've put it through the wringer
      • Fit: True to size

      I'm a SmartWool fan. Unfortunately, I didn't see any extra benefit from the PhD line. For the price, I think you will find better value in other wool-blend socks out in the market. I wear size 10.5 shoe, and LARGE sock size fits well.

      An extra benefit of this sock is the compression component. If you're doing a lot of standing/hiking, the calf compression of the sock does make a difference. Hence, 4/5 stars instead of 3/5.

      Unanswered Question

      Just got a pair of Smartwool PhD Outdoor Mountaineer lite cushion elite over the calf socks for Christmas.
      I was wondering about how warm they are for Alpine skiing and other all day activities outside in the cold and snow? Is it necessary to double up with a 2nd sock?
      Love the compression quality and the snug fit but concerned about warmth.