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Smartwool Performance Outdoor Heavy Over The Calf Sock

up to 40% Off
sale $17.37 Original price:$28.95


PhD Outdoor Heavy Over The Calf Sock

Before you step out of your tent after a cold, stormy night, switch out of your sleeping socks and into the SmartWool PhD Outdoor Heavy Over The Calf Sock to see what awaits outside your door. SmartWool's signature hard-wearing wool, nylon, and elastane blend will regulate your temperature through harsh alpine conditions, while ensuring your feet can breathe when you start to work hard. Whether you're shoveling the driveway or making a summit push, trust this plush over-the-calf sock to take care of your toes.

  • Warm your toes in bone-chilling temps with this plush sock
  • Merino wool blend regulates temperature and wicks moisture
  • Heavy weave takes up space but adds extra insulation
  • Item #SWL00N4

74% merino wool, 24% nylon, 2% elastane
14 in over-the-calf
Recommended Use
hiking & camping
Manufacturer Warranty
2 years

Tech Specs

What do you think about this product?


>Rating: 5

Winter warm

I've used it once or twice and have initial impressions
True to size
Size Bought
5` 3"

Can’t wait to wear these on my winter Alaska trip. I think paired with my sorel boots, I’ll be cozy. Very gushy and soft.

>Rating: 5


I've put it through the wringer

Definitely thick! The thickness reminds me of those blue AYSO soccer socks that they gave you as a kid, only you can tell right off the package these are top quality. They have a rib at the top that hugs the calf and makes it so they don't slip which I love. I also really enjoy the fit and how it contours to your foot is an awesome feeling and after several washes still holding strong.


Learn More: Smartwool PhD Socks

Learn more about the comfort, fit, and durability of Smartwool PhD performance socks. #gofarfeelgood

>Rating: 5

What a thick sock should be

I gave it as a gift but have feedback to share

Plenty of material, comfort, and warmth. Can't go wrong with this offering from SmartWool!

>Rating: 5

Great Socks

I've put it through the wringer

Can't go wrong with Merino socks. Feel great and provide plenty of warmth. Plus, Smartwool's warranty is top notch, should you eventually wear a hole in them!

>Rating: 5

Extra warmth and cushion

These are some of the warmest socks I've owned, I typically only wear them on the "extra cold" days. The will bunch up occasionally but overall they keep your feet almost too warm and comfortable.

>Rating: 5

Great Socks

5` 10"
175 lbs

Provide plenty of cushion, can't go wrong.


What kind of toe seam do the smart wool socks have? Is it flat?

Smartwool says: Virtually Seamless™ toe