J.B. Fields Mens 30 Below XLR Icelandic Merino Wool Thermal Boot Sock zoom in


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


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J.B. Field's® Men's "30 Below XLR" Sock is ideal for those who spend a lot of time outside in cold weather and is perfect for Winter sports. With a heavy weight, full cushion and soft Merino Wool they are sure to keep your feet warm and comfortable in the most extreme conditions.

  • Double Cuff and 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 - cushioning throughout the socks
  • Impact Support Zones - thicker stitching on the heel and toe
  • Merino Wool - the finest quality of easy care wool for exceptional warmth and softness
  • Proudly Made in Toronto, Canada

Size Chart:

  • Medium (Women's 5-9 Shoe / Men's 4-8 Shoe)
  • Large (Men's 8-12 Shoe / Women's 9 -13 Shoe)
  • X-Large (Men's 13-15 Shoe)

Product Features:

Fabric 70% Merino Wool, 25% Nylon, 5% Spandex

Style Number: 8996, 8995, 8992

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The Canadian owned and operated Great Canadian Sox Co. was established in 1934. J.B. Field's® is their flagship brand and is one of the oldest companies in Canada.

It was originally set up to manufacture socks designed for the logging industry, but now focuses mainly on outdoor adventure socks. They produce socks for any and every activity under various labels, also covering a wide variety of medical conditions such as diabetic and compression socks.