What is BisonShield™ fiber?

BisonShield™ is made from salvaged bison wool that would otherwise go to waste, resulting in a soft, warm fiber.

Will these socks keep my feet warm without overheating?

Yes — bison wool naturally regulates temperature and wicks moisture, so your feet stay warm but not overheated.

What sizes are available and how do they fit?

They come in two sizes: Small fits women's 6–10 and men's 5–8; Large fits women's 10–13 and men's 8–12.

Can I return them if I don't like them after wearing?

Yes — you can wear them for up to 30 days and still get a full refund or exchange if you're not happy.

1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned
1 lb Cleaned

1 11

The Ultimate Bison Wool Sock

Name: Ultimate Bison Wool Sock | United By Blue
Brand: United By Blue
SKU: 709-001-13224
Availability: InStock

$44.00

~~$44.00~~ $44.00

Sale Sold out

Shipping calculated at checkout.

Try them for 30 days. If you do not love them, get a full refund or exchange, even after you have worn them.

Color: Navy

Size S/M M/L

1 lb of trash
removed

Better
Materials

Free Shipping Over $25

Free standard shipping on US orders over $25. Orders under $25 ship for $5.00 flat.

Standard delivery: 3–4 business days after a 1–2 day processing window.

Expedited and international options available at checkout. Full shipping details →

Easy Returns & Exchanges

Not the right fit? Send it back within 30 days for a refund or free exchange.

Items must be unworn, unwashed, and have original tags attached. Final sale items are not eligible for return or exchange.

Start a return or exchange →

Backed by Our Guarantee

Every United By Blue product is built to last and backed by our Lifetime Guarantee. If a manufacturing defect shows up, we'll repair or replace it.

And every purchase removes 1 lb of trash from oceans and waterways.

Read the full guarantee →

“THESE ARE ABSOLUTELY THE BEST! I gave a pair to my husband as an early stocki...” Read more Read less

“THESE ARE ABSOLUTELY THE BEST! I gave a pair to my husband as an early stocking stuffer as the temps dropped into the 20's and dumped 8" of snow here in the Pacific Northwest this last week-end. He absolutely LOVED them!!! Of course I had ordered myself a pair as well. I must say that they are the most comfortable socks I have ever worn. Plenty of padding and the warmth factor is out of the ball park. We will be ordering another pair after the holidays. PS....customer service reps are the friendliest folks ever! Thanks United By Blue. Michael and Michael”

Description

30 day wear-them guarantee. Free returns and exchanges.

Try them for 30 days. If you do not love them, get a full refund or exchange, even after you have worn them.

Meet Your New Favorite Socks

People can’t stop raving about these socks (just check the 850+ 5-star reviews). The Ultimate Bison Wool Socks are the coziest, warmest, and softest socks we’ve ever made—thanks to our BisonShield™ fiber. This unique fiber is crafted from salvaged bison wool, intercepted from the waste stream, giving you unmatched comfort while being gentle on the planet. It’s the sock that hugs your feet and your eco-consciousness.

Why You’ll Love Them

Plush cushioning with reinforced heel and toe for extra durability
Ribbed arch support for a secure, snug fit
Bison wool naturally regulates temperature and wicks moisture, keeping you warm without overheating
Made with a commitment to sustainability right here in the USA