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J.B. Field's Icelandic "40 Below Arctic Trail" Wool Thermal Sock


Regular price$22.00
Shipping calculated at checkout.
  • 1 Year No Risk Guarantee
  • Made in Canada
  • $85 Free Shipping
  • Made with ethically sourced yarns
The J.B. Field's 40 Below Arctic Trail is one of the warmest thermal socks we make, containing 85% preshrunk wool! This style was designed for people who require a sock to keep their feet dry and warm in the most extreme conditions—as low as 40ºC! 

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

Don't require the extra length and looking for a slipper version of these socks? 

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 8–13 Shoe / Women's 9–13 Shoe)
X-Large (Men's 14–16 Shoe)
  • Wool Socks: 85% Preshrunk Wool, 15% Nylon
  • Thermal Socks for harsh winters 
  • Full Cushion: Full Terry Cushion adds comfort, extra warmth, and protection
  • Heavy Weight: 162- 200grams(M-XL)
  • Made proudly in Toronto, Canada!

Available with a pattern design with J.B. Field's True North

sock length chart

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

If any of ourJ.B.Field's socks do not meet your expectations, under our No-Risk Guarantee, we will replace them with ones that do – at no cost for you within 1 year of purchase.

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A Made in Canada Story

Founded in 1877 in Tavistock Ontario, J.B. Field's was origionally set up to manufacture socks for the logging industry. Today it still remains a family owned business focused on making the world's best socks.