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Ensure solid comfort when you tackle the trail this chilly fall with the SmartWool PhD Outdoor Heavy Crew Socks. Designed to fit smoothly into your hiking shoes or boots, the PhD Outdoor features a 4 Degree Elite fit system for improved stretch and recovery to keep the socks in place versus sagging down into your footwear.

  • Merino wool, nylon, and elastane fabric blend wicks moisture away from your feet for increased comfort, dries quickly, and breathes exceptionally well while you hike
  • Merino wool's antimicrobial qualities inhibit feet funk while elastane fabric offers comfortable stretch
  • 4 Degree Elite fit system uses two elastics for greater stretch and recovery to keep the socks in place
  • ReliaWool technology in high-impact areas provides longer lasting protection
  • Strategically placed mesh ventilation zones supply ventilation for temperature and moisture management
  • Flat-knit, durable toe seams for high burst strength
  • Overall Height: 8.5in

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Here's what others have to say...

5 5

These socks... omg, these socks... omg

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

Have a size 11eeee foot and ordered these socks in L. Fit perfectly at the heel and they do not bind toes. I had them on for ten minutes or less when I knew that they were possibly the warmest socks I had ever worn. The padding in the heel makes standing or walking for long periods a breeze. I am looking forward to trying these socks out during the warmer months when my beekeeping duties require me to lug heavy weight from one place to another. My feet are always worn out by the end of the day come April-June, from all the working on my feet and carrying around full honey boxes. Once you know how good your feet feel inside these socks you will be satisfied even at 26 dollars a pair. I am not a Dr. but if your ankles have a tendency to swell or if you are diabetic I recommend trying one of the Over-the-calf versions.

5 5

The Smartwool PhD socks are amazing!!!

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

I'm an avid hiker and been hiking for 7 years now. The only socks I wear are the Smartwool PhD as they hug my feet so well, breath and feel so good. I was so excited to find this heavy weight option and wore them on my Rainier climb. They were the only sock I wore, no liners needed. LOVE THESE!!!!