The GreatCanadian Sox Co. - J.B Field's - Icelandic "30 Below XLR" Merino Wool Thermal Sock

The J.B. Field's 30 Below XLR thermal sock is designed for extreme cold weather and winter sports. Featuring a full heavyweight cushion and soft Merino wool, it keeps your feet warm and comfortable in the harshest conditions.

Key upgrades over the 30 Below Classic include a double cuff for better sock retention and added arch and ankle support to prevent slippage and bunching.

Content: 
- 70% Merino Wool, 25% Nylon, 5% Spandex  
Merino Wool: Soft, moisture-wicking, and temperature-regulating                   

Double Cuff & Arch Support: Elastic bands at the arch, ankle, and top for a secure fit and superior comfort  
Full Cushion: Comfort and warmth throughout  
Impact Support Zones: Reinforced heel and toe for added durability  
Weight: 81-148 grams (XS-XL)