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J.B. Field's Icelandic "40 Below Arctic Trail" Thermal Winter Socks




The J.B. Field's 40 Below is one of the warmest thermal winter socks we make and contains 85% wool! Designed for people who require a sock to keep their feet dry and warm in the most extreme conditions. 

Pair these winter socks with a liner sock to help wick away moisture and keep your feet blister-free, smelling fresher, and feeling warmer. 

PLEASE NOTE: These socks run large. We recommend wearing a liner or sizing down, if possible. 

Sizes available:
Medium (Men's 4-8 Shoe / Women's 5-9 Shoe)
Large (Men's 8-12 Shoe / Women's 9 -13 Shoe)
X-Large (Men's 13-15 Shoe)
  • Content: 85% PreShrunk Wool, 15% Nylon
  • Pre-Shrunk Wool: We only use the finest quality of easy care wool in our socks because it is such a versatile fiber. Not only is wool breathable but it is great at helping regulate body temperature by keeping your feet dry and wicking away moisture helping prevent blisters and control odor.
  • X-Hi Cushion: Full terry cushion for extra warmth and protection
  • Made proudly in Toronto, Canada!

Available at 30% OFF with the Slightly Imperfect 2 pack.

Available with patterns with J.B.Fields True North.

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