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The J.B. Field's 40 Below Arctic Trail is one of the warmest thermal winter 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 smelling fresher, feeling warmer, and blister-free.
For additional variations with a “snowflake pattern” or “maple leaf pattern” click here
PLEASE NOTE: These socks run large. We recommend wearing a liner or sizing down, if possible.
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)
Content: 85%
Pre-Shrunk Wool, 15% Nylon
Full Cushion:
Full Terry Cushion adds comfort, extra warmth, and protection
Heavy Weight:
162- 200grams(M-XL)
Made proudly in Toronto, Canada!