Darn Tough Mountaineering Hike OTC Extra Cushion Mens Socks

Size Chart

Some adventures require a little extra. Extra cushion. Extra protection. Extra warmth. On those days only Darn Tough's Mountaineering sock will do. Thick and padded throughout, this sock comes up high and has a reinforced heel and toe and ring toe construction for a comfortable invisible seam. Merino Wool means your feet will stay warm and dry all the way up the mountain, and back. And as always, Darn Tough backs up its tough promise with an unconditional lifetime guarantee.


  • Cushion: Extra Cushion - Thick, burly, high-density cushion throughout the entire sock
  • Height: Over-the-Calf - Covers the calf, sits below the knee
  • Fine Gauge Knitting
  • Naturally Antimicrobial
  • Moisture Wicking
  • Regulates Temperature
  • Made in the USA
  • Lifetime Guarantee


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

Sock Height

Knee-High Height Sock

Sock Cushion

Extra Heavy Cushion Sock

Customer Reviews

Based on 31 reviews
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.

j s. (Dickinson, North Dakota)
Doesn't stay up, unfortunately, but plenty thick in its entirety

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 plenty padded all the way around, but I'd say the footpad portion isn't that thick. I wish they'd make a really thick sock, mostly to hold in the heat when it's really cold out.

trask dix (Decatur, Georgia)
Best camp socks ever!

Big, Thick, WARM! Great socks!

Dr T Tran (Cuyahoga Falls, Ohio)
Great socks

Best ever!

Matt Seefeldt (Saint Paul, Minnesota)
They're Great

Like many reviews or reviewers, I haven't yet put these socks to the test. But I have worn them several times in above freezing temps here in MN. So far they are wonderful.
They seem to have great insulation properties compared to all of my other wool socks. They are smooth and feel great on my feet.