- EXTREME COLD PROTECTION - Designed for harsh winter condition. J.B. Field's 40 Below Arctic Trail socks keep feet warm in temperatures as low as -40°C, making them ideal for outdoor activities in harsh cold.
- PREMIUM WOOL - J.B. Field's 40 Below Arctic Trail is one of the warmest thermal winter socks we make, containing 85% preshrunk wool and 15% Nylon ensures the socks hold up even after repeated use and washing.
- PRE-SHRUNK WOOL & LONG-LASTING - Made with the finest quality of easy care wool in our socks because it is such a versatile fiber.
- FULL CUSHION COMFORT - Full Terry Cushion adds comfort, extra warmth, and protection making them perfect for extended wear in cold weather conditions.
- VARIOUS SIZE OPTIONS - 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 14–16 Shoe)
