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Darn Tough Men's Mountaineering OTC Extra Cush Socks

Darn Tough Men's Mountaineering OTC Extra Cush Socks

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Product details

The Darn Tough Mountaineering OTC Extra Cushion is a heavyweight over-the-calf sock for long days in the coldest conditions. The Terry loop cushioning throughout the sock adds a comfortable layer of insulation from toe to calf, and merino wool helps regulate temperature as things warm up. Built for alpinists and winter mountaineers, Darn Tough's Mountaineering OTC Extra Cushion is a warm sock for anyone who doesn't want cold feet.

Key Features:

  • Guaranteed for Life – Darn Tough stands behind its socks and offers a lifetime guarantee.
  • Temperature Regulation – Merino Wool regulates temperature to stay cool in the heat and warm in the cold.
  • Merino Wool – Merino Wool is naturally odor-resistant, breathes well, and dries quickly.
  • Extra Cushion – Terry Loop cushioning throughout the sock provides an extra layer of merino wool insulation.
  • Performance Fit – A snug fit keeps the socks from slipping or bunching to prevent blisters.
Age Group
Sock height
Over the calf
Sock cushioning
Best use
Mountaineering, Ice climbing
Extra Cushion
Darn Tough's thickest, burliest and highest density cushioning makes for a big, bad monster of a sock.
Over the Calf Height
The name says it all. The ultimate height for keeping the outside—out.
Insulating, Quick Drying, Wicking, Anti-Odor
Darn Tough Men's Mountaineering OTC Extra Cush Socks
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Top reviews
Would an Expert recommend this product for you?
Stephen Chappel
Stephen Chappel
Verified snowboard expert
Reviewed Sep 19, 2022

No slipping, no bunching, and no blisters. Unprecedented durability and Darn Tough's unique “put it on, forget it’s on” feel. Pulls moisture away from skin. Fast drying. All Weather Performance: Cool in the summer, warm in the winter. Repels bacteria and odor. These Over The Calf and Extra Cushion socks will provide the most height, protection, cushioning and warmth.