United by Blue Ultimate American Sock

This is the first part of a review of a new sock – and a new process for making socks.  I’m personally interested in this, because of my interest in American made products, specifically those for the outdoors.  Unitedbyblue is now producing socks in this country, from a fairly new source – bison down.  The story behind the socks is really interesting and worth checking out.  Over the next few months, we’ll let you know how the actual socks work out.

So far I’ve worn them once and I’ve found them to be warm, without being too hot.  I’ll be wearing them in much colder weather, and for longer lengths of time.  They fit well – size large on my size 13 feet.   I’m concerned they might be itchy if worn for long periods of time.  The texture is definitely different from most cold weather socks I’ve worn.  Its not unusual for me to be outside for 10-12 hours at a time, so I’ll be watching for wear spots and how much ‘cushion’ they still have at the end of the day.

The Facts: (taken from unitedbyblue.com)


  • 56% Merino Wool, 24% Bison Down, 18% Nylon, 2% Spandex

  • Made in USA

  • Available in 2 sizes: SMALL – Women 6-10 / Men 5-9. LARGE – Women 10-13 / Men 9-13

  • 1×1 Spandex Rib Knit Welt
    Spandex Knit Throughout Leg
    Reinforced Heel and Toe Areas
    Spandex Rib Arch Support
    Flat Knit Side Panels
    Flat Toe Seam 

What follows is their story –

The Journey

  • Philadelphia, PA: Socks and packaging are designed

  • North Dakota: Bison down collected from ranchers

  • Uxbridge, MA: Bison down blended with American Merino Wool, combed, carded and spun into sock yarns

  • Osage, IA: The Ultimate American Socks are knitted and packaged

By purchasing these socks, you help UBB remove 1 pound of trash
from oceans and waterways around the world.

These socks were provided for review purposes by the company.
UPDATE: 12/12/2015
I’m not sure why bison look so grumpy.  If these socks are any indication, they should look happy all the time.  My feet have been very happy wearing these United by Blue, Ultimate American socks.  I sometimes have them on my feet for close to 20 hours at a time.  I’m outdoors a lot, then working indoors, so the change in temperature can be rough.  I am also on my feet most of that time, so a nice cushioned sock is important.  Our weather has been unseasonably warm, so I can’t really say much about how warm they keep my feet in sub-zero weather.
The socks keep my feet warm enough, without causing them to sweat a lot.  This is really a good thing, because when I take my boots off, I no longer knock myself or anyone else out from the smell.  The socks haven’t lost the ‘new sock’ feel.  When I take them off, the feel a bit compressed, but after washing they spring right back to like-new.  That keeps me wearing them again and again.  I tend to be a sock snob, and get rid of socks that no longer feel good, probably way before most people would. When brand new, they were a bit itchy feeling, but that has gone away.
I wear them a couple times a week, and am very happy they aren’t showing any real signs of wear.  I am hoping that I find another pair or two under the Christmas tree!
I’ll be back in another month to report back on who they’ve held up after even more use, and in most likely much colder weather.

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