Smartwool Mountaineering Extra Heavy Crew

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Smartwool Mountaineering Extra Heavy Crew


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SKU: SMARTWOOL-SW0SW133 Category: Tag:


Smartwool Mountaineering Extra Heavy Crew

Get a pair of our most durable, best-fitting mountaineering socks for your next adventure. The Smartwool Mountaineering Extra Heavy Crew has an arch brace holds the sock in place and extra-heavy cushioning will help keep your feet warm and dry when you’re mountaineering or multi-day backpacking. And with the itch- and stink-free benefits of ZQ Certified Merino wool, your partners in pursuit will thank you.


  • Extra Heavy Cushion
    • The ultimate in impact absorption and warmth
  • Smartwool® Fit System
    • 2 Degree fit system with arch and ankle support helps keep sock in place


  • Sock Height: Crew
  • Sizing clearly indicated on the sock
  • Flat knit toe seam for additional comfort
  • Made in USA of Imported Yarn: 74% Merino Wool, 25% Nylon, 1% Elastane


  • Machine Wash Warm, Inside Out
  • Do Not Bleach
  • Tumble Dry Low
  • Do Not Iron
  • Do Not Dry Clean


  • Medium: Fits Men’s US shoe size 6-8.5
  • Large: Fits Men’s US shoe size 9-11.5
  • X-Large: Fits Men’s US shoe size 12-14.5

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