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.

93 Reviews (4.7 out of 5 Grommets)

Sorted by Rating


2/23/2016 by Catharine

Absolutely love them!


Thick and comfy!

2/23/2016 by Kathleen

I gave a pair of these to my husband as a Valentine's Day gift and he loves them! They are so soft, thick and not at all itchy. Would probably have a drawer full of they weren't so expensive. But they make a perfect gift.More > < Less


Love these socks!!!!

2/23/2016 by Mary

I bought these buffalo down socks for my husband because his feet never get warm in the winter. He also has neuropathy, and they are just what he needs! These wonderful thick warm socks are amazing! He loves them. I bought a second pair to have when they need to be washed. They are pricey, but so worth it! I will be getting a third pair!

Thank you! Thank you! Thank you!
More > < Less


Great socks

2/23/2016 by Robin

These socks are very warm and very soft. I got them for my mom who has a hard time staying warm. The only thing is they are a little big for women. If you ever make them in a smaller size I will probably get a pair of them too.More > < Less


Best socks I ever bought

2/23/2016 by Robert

They are costly but as they say you get what you pay for! As I get older feet get colder, these are the warmest sock ever.

Items 71 to 75 of 93 total

**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.