FTF – Boulder NFZ Hike


Key Features

  • Colors Blue, or Brown
  • Sizes Medium, Large, X-Large
  • U.S. Merino Wool
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All No Fly Zone socks are manufactured using yarns treated with permethrin insect repellent. Odorless and durable, permethrin repels common biting insects like mosquitoes, flies, chiggers, midges, ticks, and ants. And best of all, it doesn’t alter the amazing qualities of our 100% US-made merino wool. Wearing the No Fly Zone Boulder lowers your chances of getting bothersome bites – or worse, insect-borne diseases – on your next day hike or backpacking trip

  • U.S. Merino Wool
    Merino wool is soft, itch-free, naturally odor- and bacteria-resistant, cool in the summer and warm in winter. We source our 100% U.S. grown merino wool exclusively from sheep raised by American farmers on American farms.
  • Light Cushion
    A cushion that is light in weight along the base of the foot only. This all-season construction is highly versatile.
  • CREW
    Traditional sock height that fits firmly on the lower calf, also known as the daily.
  • Seamless Toe Closure
    Advanced knitting techniques create a totally flat connection in the toe box, reducing bulk and eliminating blister-generating friction.
  • Durability Assured
    Reinforced construction and low-stress seam placement reduce wear and tear, increasing the life of the sock.
  • Ingredients
    72% US Merino Wool
    26% US Nylon
    2% US LYCRA® Spandex


Additional information

Weight .5 lbs

Black, Blue, Brown


Large, Medium, x-Large


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