Red Over-the-Calf Thermal Socks
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J.B. Field's Icelandic "30 Below Over-the-Calf" Merino Wool Thermal Sock
Black over-the-calf wool socks
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Over-the-Calf Thermal Socks For Winter
Over-the-Calf Thermal Socks Features
Over-the-Calf Merino Wool Thermal Socks
winter thermal sock
winter thermal sock
Navy Over-the-Calf Thermal Socks
Mid Grey Over-the-Calf Thermal Socks
Natural Over-the-Calf Thermal Socks
Black Over-the-Calf Thermal Socks

J.B. Field's Icelandic "30 Below Over-the-Calf" Merino Wool Thermal Sock


Regular price$22.00
Shipping calculated at checkout.
  • 1 Year No Risk Guarantee
  • Made in Canada
  • $85 Free Shipping
  • Made with ethically sourced yarns


The J.B. Field's 30 Below Classic is already our most popular sock and the bestselling thermal winter sock in Canada, but due to high demand for a longer length, we have designed an over-the-calf version! This line of thermal winter socks was intended for people who require a sock that can keep their feet dry, warm, and comfortable in the most extreme conditions... but now it can cover more legs, making it the ideal ski sock! 


Why we use merino wool in our socks:
Merino wool is a type of wool that comes from a merino sheep. It is the finest wool on the market, making the fabric soft and itch-free. It is also breathable and temperature-regulating, so your feet are not too hot or cold. Merino is one of the best fibres for wicking moisture as it can absorb up to 30% of its weight in moisture and moves it from your skin to the outside of the fabric, where it evaporates. Because it stays dry, odour-causing bacteria cannot grow, making it a naturally antimicrobial fibre.

Also available in a crew length

Also available as a slightly imperfect 3 pack

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)
  • Merino Wool Socks: 70% Merino Wool & 30% Nylon
  • Merino Wool for exceptional softness, moisture wicking and temperature regulation
  • Merino wool has a natural crimp in the fibre. This crimp traps body heat in air pockets around your body, keeping you warmer for longer. 
  • Thermal Socks for harsh winters
  • 15" Leg length
  • Pre-Shrunk Merino Wool: We use the best quality wool from Australia for exceptional softness and warmth
  • Heavy Cushion: Full terry cushion for added comfort, extra warmth, and protection
  • Heavyweight: 132-165 grams(M-XL)
  • Made proudly in Toronto, Canada!

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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