Grey thermal socks with a black stripe
winter thermal socks
Merino Wool Thermal Socks Features
White, red, blue, or grey thermal socks
 Thermal Socks For Winter
Merino Wool Thermal Socks For Winter
Red thermal sock for winter
Dark blue winter thermal sock
Black Merino Wool Thermal Socks
Navy Merino Wool Thermal Socks
Natural Merino Wool Thermal Socks
Mid Grey Merino Wool Thermal Socks
Denim Merino Wool Thermal Socks
Green Merino Wool Thermal Socks
Red Merino Wool Thermal Socks

J.B. Field's Icelandic "30 Below Classic" 70% Merino Wool Thermal Sock

8038-02

Sale price$17.00
/
Size
Color
Size chart
  • 30 day return policy
  • Customer Rewards Program
  • Flat Rate Shipping In US & CAN
  • Great Customer Service & Easy Returns


The J.B. Field's *30 Below Classic* is Canada's best-selling thermal sock, designed to keep your feet warm in temperatures as low as -30°C.

Made from 70% merino wool, these socks offer exceptional softness, moisture-wicking properties, and temperature regulation. The merino wool absorbs moisture, keeps feet dry, and prevents odor, while its natural crimp traps heat for added warmth.

Featuring heavy-weight cushioning throughout, these socks provide extra comfort and protection for outdoor activities in cold conditions. 

Available in various sizes, including knee-high and slightly imperfect versions.

Sizes Available:  
- X-Small (Kids 8-11)  
- Small (Boys/Girls 1-4, Adults 2-5)  
- S/M (Women's 4-7, Men's 3-6)  
- Medium (Women's 7-10, Men's 6-9)  
- Large (Women's 9-13, Men's 8-13)  
- X-Large (Men's 14-16)

Key Features: 
- 70% Merino Wool, 30% Nylon  
- Non-binding top for circulation  
- Heavy-weight cushioning for comfort & warmth  

Machine Wash Warm, Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.

If any of our J.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. For all other brands there is a 30 day return policy.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.


What makes us great?

We have a great selection of Canadian made and Canadian owned brands, fast shipping, and local pickup and returns in the GTA. Great quality socks for the whole family with a great return policy!

Bring your
brand to life.

Seamless hero videos

easy to wear

We offer a unique blend of fibers and construction for all day comfort and protection. We carry a wide range of sizes from XXS - XXL

Premium Comfort

Feel and look good with socks designed for specific uses and seasons, with strategically placed cushioning and ethically sourced yarns.

Proudly Canadian

Shop your favourite Canadian made and Canadian owned sock brands. Plus earn rewards, shop our sock of the week and check our clearance sections to save!

GREAT SELECTION

Most of our socks we carry are unisex and typically the only difference is the sizing. We carry a wide range of sizes from XXS - XXL

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.

What make us special?

We use technical blends of yarns and the latest knitting technology for superior comfort, fit, and performance.