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SmartWool Men's Mountaineering Extra Heavy Crew Socks

Style: SW133
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When you're wearing the SmartWool Men's Mountaineering Extra Heavy Crew Socks, extra-heavy cushioning will keep your feet warm and dry when you're mountaineering, ice climbing or multi-day backpacking. Arch brace holds the sock in place.


  • Sizing clearly indicated on the sock

  • Flat knit toe seam

  • Sock Height: Crew

  • Machine washable

  • Note: Charcoal Heather & Charcoal Crimson are identical colors

  • Knit in USA of Imported Yarn: 74% Merino Wool, 25% Nylon, 1% Elastane

Men's Sizing (Shoe Size Reference):

  • M: 6-8.5

  • L: 9-11.5
  • XL: 12-14.5

Smartwool Socks Sizing

U.S. Men's Shoe Size3-5.56-8.59-11.512-14.5
U.S. Women's Shoe Size4-6.57-9.510-12.5N/A
Euro Shoe Size34-3738-4142-4546-49
UK Shoe Size2-4.55-7.58-10.511-13.5
Calf Circumference (Largest part of the calf)11"-14.5" (18-26.5 cm)12.5"-16.5" (32-41 cm)14.5"-18" (37-45.5 cm)16"-23" (41-58 cm)

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