Greatsox Canadian Product
The JB Field's 40 Below Arctic Trail is one of the warmest thermal winter socks we make, containing 85% pre-shrunk wool! This style was designed for people who need a sock to keep their feet dry and warm in the most extreme conditions, as low as -40°C!
Pair these winter socks with a sock liner to help wick away moisture and keep your feet cooler, warmer, and blister-free.
Pre-Shrunk Wool: We use only the best quality easy-care wool in our socks because it's such a versatile fiber. It is breathable and moisture-wicking, and helps regulate body temperature by keeping feet dry, preventing blisters, and controlling odor.
CAUTION: These socks run large. We recommend wearing a liner or sizing down, if possible.
Available Sizes:
Medium (Men's Shoe 4–8 / Women's Shoe 5–9)
Large (Men's Shoe 8–12 / Women's Shoe 9–13)
- Content: 85% pre-shrunk wool, 15% nylon
- Full Cushion: Full terry cushion adds comfort, extra warmth, and protection.
- Heavyweight: 162-200 grams (M-XL)
- Proudly Made in Toronto, Canada!
