Red Thermal Socks
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Merino Wool Thermal Socks Features
merino wool boot socks for winter
Red Thermal Socks
Merino Wool Thermal Socks
winter thermal socks
Green Thermal Socks
Navy Merino Wool Thermal Socks
Black Merino Wool Thermal Socks
Mid Grey Thermal Socks
Merino Wool Thermal Socks
Merino Wool Thermal Socks
Winter Thermal Socks
Winter Thermal Socks
Merino Wool Thermal Socks For Winter

J.B. Field's Icelandic "30 Below XLR" Merino Wool Thermal Sock


Regular price$13.00
Shipping calculated at checkout.

  • In stock, ready to ship
  • Inventory on the way

The J.B. Field's "30 Below XLR" thermal sock is ideal for those who spend a lot of time outside in cold weather and is perfect for winter sports. With a full, heavyweight cushion and soft Merino wool, they will keep your feet warm and comfortable in the most extreme conditions.

The only differences between these thermal socks and the "30 Below Classic" are the double cuff to help socks stay up better and both ankle and arch support, which prevents slippage and bunching.

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.
Sizes available:
X-Small (8-11 Kids Shoe)
Small (Men's 1-4/Women's 2-5)
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 13–15 Shoe)

  • Merino Wool Socks: 70% Merino Wool, 25% Nylon, 5% Spandex
  • 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
  • Double Cuff & Arch Support: Strategically placed elastic support bands where the sock is thinner: around the Arch, Ankle, and Top of the sock. Keeps the sock up for superior fit, comfort, and performance.
  • Full Cushion: Comfortable cushioning throughout the sock 
  • Impact Support Zones: Reinforced heel and toe for added durability 
  • Heavyweight: 81-148 grams(XS-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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