Darn Tough Mens Mountaineering Over-the-Calf Heavyweight Hiking Socks


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For a full day in the cold, arm yourself with the Darn Tough Men's Mountaineering Over-the-Calf hiking sock. A heavyweight trail companion with a full cushion from top to toe, this sock is chock full of Merino wool for warmth, and as always, Darn Tough backs up its tough promise with an unconditional lifetime guarantee.


  • Cushion: extra heavy
  • Weight: heavyweight
  • Height: knee-high
  • Performance fit for no slipping, bunching or blisters
  • Fine gauge knitting for durability
  • Fast action wicking pulls moisture from the foot
  • Merino wool regulates temperature
  • Made in the USA
  • Unconditional lifetime guarantee


73% Merino wool, 25% Nylon, 2% Lycra Spandex

Sock Height

Knee High Sock

Sock Cushion

Extra Heavy Cushion Sock

Customer Reviews

Based on 44 reviews
j s. (Dickinson, ND)
Doesn't stay up, unfortunately, but is pretty thick all around

If I'd known this sock would not stay up for more than a few minutes of wearing it, I would've ordered a shorter sock to avoid the bunching that happens when the OTC sock ends up in a crumple just above my ankle. This sock's plenty padded all the way around, but I'd say the footpad portion isn't thick enough. I wish they'd make a really thick sock, mostly to hold in the heat when it's really cold out.

V.M. (Jay, ME)
Work sock

My husband recently moved to a job were he is on his feet more often and said his feet were sore and arches hurt. I wear darn tough for work as well as hiking so I bought him some to try. He is very happy and said they are working great for him.

Coal miner

We have family members who are coal miners in West Virginia. They say these socks are the best ever for wearing inside their work boots.

Soft, great length, NOT as promised.

Soft, great length, NOT as promised. So disappointed with these socks. We had such high hopes for these socks after reading the reviews, and after shopping around I purchased a couple of pairs for my husband. He was excited when he first put them on, he walks 7 to 10 miles per day at work at within 90 minutes his socks are down at his ankles! Well who wants to spend all day pulling up their socks? I was hoping it was a fluke and we just got a bad pair, so I gave him the other pair to wear the following day. Same problem, they refused to stay up!! We love that they are made in the USA. Don't mind paying for them. I do mind that they don't do what they promised.

M.E. (Henderson, NV)

Darn Tough Mens Mountaineering Over-the-Calf Heavyweight Hiking Socks