Thermal Heavyweight Mid-Calf Boot Grey Medium - Fox River® Socks

Thermal Heavyweight Mid-Calf Boot

$ 13.00
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Shipping calculated at checkout.
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  • Free Domestic Shipping on Orders Over $35
  • In stock, ready to ship
Style #7150

Great for a variety of outdoor excursions, these FoxSox keep you warm and dry. Whether you're in cool fall temperatures or the mid-winter freeze, these heavyweight socks will cut out the cold.

  • Fully thermalined construction insulates to block out cold
  • Cushion throughout absorbs shocks and impacts from boot
  • Contour rib top holds sock in place to eliminate slippage
  • Smooth, flat comfort toe seam
  • 55% acrylic, 35% wool, 8% stretch nylon, 2% spandex
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Handwear Size Guide

How should I take care of my new favorite Fox River items?

SOCKS - Machine wash warm, inside out. Do not bleach. Tumble dry on low. Do not iron. Do not dry clean. Note: Care Instructions are listed on each product page and on every package.

HANDWEAR - Hand wash, warm with mild detergent or soap. Gentle hand wring. Dry flat.

Free shipping, with minimum order value $35.00 (after discounts), is currently available to customers through economy shipping service only. This excludes bulk orders. The ship-to address must be in the contiguous United States. If you have eligible products in your cart, and have met the minimum threshold of $35.00 (after discounts), those will be shipped for free.

We Believe in Our Socks

FOX RIVER GUARANTEE

At Fox River, we are serious about delivering the highest-quality products for our customer. Simply stated, if you are not satisfied with the quality of our product, we will provide a replacement.

Who We Are


Fox River is a leading U.S. manufacturer of outdoor, sport and lifestyle performance socks since 1900. Fox River is privately owned and operates a hosiery mill in Osage, Iowa at the heart of the country. The central location of the mill helps Fox River offer quick, convenient deliveries across the country and around the globe. Fox River’s premium and performance socks are manufactured at its Iowa headquarters by 200 of the friendliest, hard-working folks you’ll ever meet. Fox River socks have been made in the USA since 1900 utilizing US and imported yarns. We're committed to remaining American-made.

Our Commitment

The Fox River brand is known for its commitment to innovative sock construction and continuous attention to trends in the marketplace. Notably, the brand introduced its signature Wick Dry® moisture management technology in 1985 to help keep feet dry and reduce the moisture build-up that can lead to hot spots and blisters. In 2000, Fox River launched the industry’s first women’s specific-fit performance sock line with smaller toe boxes and heel pockets to better fit women’s feet.