Blue Flame E-Tech Bamboo Thermal Socks

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What Size Do You Need?


You Need Sock Size
6-10.5 5-9 M
10.5-14 9-12.5 L

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Blue Flame E-Tech thermals not only insulate but use the super moisture-wicking properties of bamboo viscose to keep feet drier. While moisture build-up typically defeats most socks' insulative properties, these E-Tech are designed with thick inner loops of cushioning that trap heat and keep your feet warm and dry for hours. This sock rates four flames out of four for thermal properties.

  • Bamboo viscose looped thermal pile trap and hold heat.
  • The knitted smooth integrated toe seam stitching reduces friction.
  • Natural moisture-wicking materials keep feet dry and blister-free.
  • Arch support for comfort to fight foot fatigue.

Sock Materials:

40% Bamboo Viscose / Acrylic / Polyester / Spandex

Why Bamboo Socks?

Bamboo is an ecologically friendly plant to farm. Unlike other materials, bamboo viscose performance attributes are natural, so there is no need for chemical additives or fabric conditioners. Bamboo viscose has a silk-like feel and is ultra-soft against your skin, which reduces friction and makes for really comfortable socks. Learn more...

Blue Flame Thermal Socks Warmth Index

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10 Reviews

  • 5
    Warm socks for cold feet

    Posted by Jan on Jan 10th 2018

    My feet are always cold, so I am constantly on the lookout for the warmest socks. These are very warm without being bulky. The toes and heels are smooth and don't get bunched up in my shoes. They fit a little looser than most socks, which takes a little getting used to, but they are my go-to socks on cold winter days.