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Ultimate American Sock

By United By Blue

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A blend of bison down and merino wool makes the Ultimate American Sock a warm, cushy, and durable way to keep your feet snug and dry. Completely Made in the USA—from the North Dakota materials to the Pennsylvania packaging—these socks help our country’s environment, too. For every pair sold, the company cleans a pound of litter from our nation’s waterways.

  • Made in the USA: Philadelphia, PA; Uxbridge, MA; Osage, IA; and ND
  • Materials: 56% merino wool, 24% bison down, 18% nylon, and 2% spandex
  • Care: Machine wash inside out in warm water. Tumble dry, low. Do not bleach, iron, or dry clean
  • Bison down is softer than cashmere and warmer than wool
  • Features a flat toe seam, reinforced heel, and padding for support—built for comfort and durability
  • Great for winter—keeps feet warm and dry
  • 1 x 1 spandex rib knit welt and spandex knit throughout leg
  • Unisex socks
  • Dimensions: Fits men's sizes 9-13 or women's sizes 10-13
  • Weight: 0.269 lb.

72 Reviews (4.6 out of 5 Grommets)

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Cushy and soft love them!!!!


Superb socks soft and cushy. Truly
Love them


Great sock


Got these for my son in CT. He absolutely loves them. Warm, comfy all around great socks!




These socks exceeded my expectations! They are substantial socks, keep my feet warm, and they have a cushioning effect. My feet were the most comfortable they have been in a while, even though I had worn the socks all day. I would recommend these socks and would buy another pair or two if they came in different patterns or colors.More > < Less


Great socks


These are the nicest socks I have ever seen or purchased. I got them to give to my husband for Christmas from his dog Max. He is going to love wearing them. I might even get him another pair later.More > < Less


Best socks, ever!


When the cold weather hits Utah, these socks go onto my husband’s feet. He has neuropathy in his feet and legs. The cold make his feet hurt so bad. These socks make the cold bearable. I order several each year!More > < Less

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**Keep your feet warmer than bison in a snowstorm.**

About United By Blue

Bison Built

When you think of bison, you probably picture large, furry animals roaming America’s plains. What you might not know is that bison down is soft, warm, and wicks moisture, too. What better way to use this wonder fiber than in thick, cushy socks that are American from materials to mission?

The Ultimate American Socks are plush, warm, and even microbial—meaning you can wear a pair a few times before washing. Padded, reinforced toes and heels add to their durability.

Every step of making these ultra-American socks takes place in the U.S., starting with bison ranched in North Dakota. From there, the yarn is spun in Massachusetts and knitted in Iowa. The packaging is made in Pennsylvania.

United by Blue is so committed to our country that these socks even benefit American conservation. For every pair sold, they remove one pound of litter from our waterways.

Every time you pull on these cozy socks, take pride in preserving American manufacturing as well as our shining lakes and streams.