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SmartWool loaded its PhD Outdoor Medium Women's Crew Sock with a host of technical features to give you blister-proof performance on the trail. However, we suspect that you'll be pulling this plush, ultra-comfortable sock out of the drawer long after you've put the hiking boots away for the year.

  • Soft merino feels great against the skin, insulates superbly, wicks moisture, and naturally inhibits odor
  • Nylon adds durability, while 2% spandex content enhances the fit
  • Four-degree fit system features stretchy support around the ankle, upper instep, lower instep, and arch, so it fits perfectly and won't move around in your boot
  • ReliaWool high-density cushioning in impact areas provides all-day comfort and durability
  • Flat-knit seamless toe resists blowouts

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SmartWool PhD Outdoor Medium Crew Sock - Women's

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Here's what others have to say...

5 5

Refuse to take these off

  • Familiarity: I've used it several times
  • Fit: True to size

These socks are so warm and comfortable! Am wearing them even when it's not that cold! Great buy.

5 5

Great socks

  • Familiarity: I've used it several times
  • Fit: True to size

Bought these for my wife- she loves them. Light enough for everyday wear (she wears them under casual boots) but also hardy enough for day hikes. Wash well and hold their shape.

5 5

Best Socks...

  • Gender: Female
  • Familiarity: I've put it through the wringer

By far! They are super toasty, super comfy, and still keep your feet warm if they get wet. I would definitely recommend these , I'm convinced everyone needs a pair (or three)!

5 5

Smart wool sock rock

  • Familiarity: I gave it as a gift but have feedback to share

Love these socks! Oh so toasty warm

5 5

Love Smart Wool

  • Gender: Female

You can't go wrong in purchasing any Smart Wool product. I'm hooked on them. Purchased several pairs for the winter and summer.

4 5

Best way to be blister free!

Seriously love merino, and there's no itch here, no blistering, and comfort for multiple days without washing. Phd knit is seriously supportive too!