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Darn Tough Mountaineering OTC Heavyweight Socks

sku# 203237
Darn Tough - Mountaineering OTC Heavyweight SocksDarn Tough - Mountaineering OTC Heavyweight SocksDarn Tough - Mountaineering OTC Heavyweight Socks
Model Info
The Mountaineering OTC Heavyweight Socks is on sale!


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Limited time! Sale ends 11/30.

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Product Info

Made with a high percentage of Merino wool and a thick cushion for all-day comfort on the trail, the Darn Tough Mountaineering OTC Heavyweight Socks are designed for hardcore hikers and climbers who depend on their feet to get them there. With a 73% Merino Wool, 25% Nylon, 2% Lycra® Spandex composition and classic Darn Tough seamless comfort, these are the socks you want to be in for the long haul.

Product Details


73% Merino Wool / 25% Nylon / 2% Lycra® Spandex


Heavy Weight


Over the Calf HeightThe name says it all. The ultimate height for keeping the outside out.


Heavy weight terry loop cushion


Fast Action WickingPulls moisture away from skin. Fast drying.

Fine Gauge KnittingUnprecedented durability and our unique “put it on, forget it’s on” feel.

Guaranteed For LifeNo strings. No conditions. For life.

Merino WoolDarn Tough's custom count, shrink-treated Merino wool enhances the comfort and durability that outdoor enthusiasts have come to expect from this fiber.

Naturally AntimicrobialRepels bacteria and odors.

Performance FitFrom form fitting toe boxes to sculpted heel pockets and integrated arch support, Darn Tough's knitting techniques produce the finest fitting performance sock available.

True Seamless™Undetectable seam fusion for an ultra smooth, invisible feel.

Made in Vermont, USA


  • Material: Merino Wool, Nylon, Spandex
  • Made in the USA: Yes
  • Warranty: Limited Lifetime

Other Notes

Darn Tough products can only be shipped within the United States



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