J.B.Field's 40 Below 85% Wool Winter Socks | Made in Canada – Great Sox

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Thermal socks

Unisex wool socks

heavy thermal socks for winter

Beige Wool Thermal Socks

preshrunk thermal wool socks

wool socks for extreme cold

Wool Thermal Socks Features

Green Thermal Socks For Winter

Wool thermal socks

Black Thermal Socks

Green Thermal Socks

Thermal Socks Sizing Chart

Thermal socks

Unisex wool socks

heavy thermal socks for winter

Beige Wool Thermal Socks

preshrunk thermal wool socks

wool socks for extreme cold

Wool Thermal Socks Features

Green Thermal Socks For Winter

Wool thermal socks

Black Thermal Socks

Green Thermal Socks

Thermal Socks Sizing Chart

$22.00

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.

J.B.Field's 40 Below 85% Wool Winter Socks | Made in Canada