Seriously warm. Surprisingly soft.
Our Pro-Gear Technical Bison and Silk Boot Socks have all the special features to fit your boot needs. We created a sock from Bison down and silk that will keep your feet warm and dry all winter long.
This sock has a terry loop cushioned footbed, vented and structured instep for a smooth fit, terry loop 4" x 4" shin pad and just enough spandex to hold it above your 12" boot top...but not enough to cut down circulation. Nylon over-plaited in the toe and way up past the heel for long smooth wear. Seriously warm. Surprisingly soft. The perfect sock for your ski boots, heavy winter snow boots or city rain boots. You will feel the difference that bison can make in your socks.
- Mid-calf boot style / 12" from heel
- 4" x 4" Shin pad on the front of the leg cushions lace-up boots or ski boots
- Reinforced toe
- Extended padded and reinforced heel zone
- Smooth flat toe seam
- Vented side panel
- Padded on the bottom of the foot
- Contoured rib top & stretched ribbing
- Arch and ankle compression support
- Bison logo on the toe
Sock Sizing
Socks should fit as well as any of your other garments. The heel should sit on your heel and not under it as in a sock too small, nor half way up your Achilles as in a sock that’s too large. Socks should be flush against your foot with no extra material sagging. The toe seam should lay flat across the top of the toes.
Sock Heel at Your Heel
The sock heel should sit on your heel, not under it or above it.
Flat Toe Seam
The toe seam should lie flat along the top of your toes, not above or below.
Taut Across the Foot
Socks should be taut across your foot with no sagging material.
If you wear a wide shoe size (E+), consider sizing up.
| Shoe Size | US Men | US Women |
| Small | – | 3 – 6.5 |
| Medium | 7 – 9 | 7 – 10 |
| Large | 9.5 – 11.5 | 10.5 – 12.5 |
| X-Large | 12 – 14 | – |
Care Instructions
Machine wash warm. Then tumble dry. No need to bleach, iron or dry clean.
Once you are ready to clean your gear, follow a few simple steps to care for your favorite socks, beanie, and gloves.
How to Care for your favorite bison fiber gearMaterial Composition
Here at The Buffalo Wool Co., our yarn bases for all our gear is (and will always be) natural fibers. This means that the internal structure of your socks (the parts that touch your skin) will be made from bison fiber, merino wool, mulberry silk, and other 100% natural fibers.
The overall composition (the parts that touch your skin plus everything else) will include other materials like nylon or polyester. This is done to make the sock more durable and ensure that your socks work (and play) as hard as you do.
Yarn Base Composition
50% American bison down / 50% Silk
Overall Composition
32% American bison down / 32% silk / 26% nylon / 4% polyester / 4% Tencel / 2% Lycra spandex
Guide to fiber compositionOur World-Famous Bison Wool Socks
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| American Field Kodiak Edition - Extreme Gear Boot Sock | Trekker - Advantage Gear Boot Socks | Pro Gear Boot Socks | Yellowstone - Advantage Gear Crew Sock | Pro Gear Crew Socks | Red Dog Kids American Field Jr. - Crew Socks | Casual Crew 2.0 - Ultralight Gear Crew Socks | Really Really Nice - Crew Sock *Limited Edition* | The B.O.S.S. - Ultralight Gear Short Sock | O.T.C. - Advantage Gear Compression Sock | Kenai - Ultralight Gear Boot Sock | O.T.C. - Advantage Gear Compression Sock - Seconds | Yellowstone - Advantage Gear Crew Sock Seconds | Casual Crew 2.0 - Ultralight Gear Crew Socks closeout | Trekker - Advantage Gear Boot Socks- seconds medium only | |
| Height | Boot 14" | Boot 14" | Boot 12" | Crew | Crew | Crew | Crew | Crew | Ankle | Over-the-calf | Over-the-calf | Over-the-calf | Crew | Crew | Boot 14" |
| Weight | Extra Heavyweight | Extra Heavyweight | Midweight | Heavyweight | Midweight | Midweight | Lightweight | Lightweight | Midweight | Midweight | Midweight | Midweight | Heavyweight | Lightweight | Extra Heavyweight |
| Performance Blend | Extreme Gear | Advantage Gear | Pro Gear | Advantage Gear | Pro Gear | Ultralight Gear | Ultralight Gear | Luxury Gear | Ultralight Gear | Advantage Gear | Ultralight Gear | Advantage Gear | Advantage Gear | Ultralight Gear | Advantage Gear |
| Cushioning | Full cushion | Full cushion | Under foot cushion | Under foot cushion | Under foot cushion | Full cushion | Flat knit (no cushion) | Under foot cushion | Under foot cushion | Under foot cushion | Under foot cushion | Under foot cushion | Under foot cushion | Flat knit (no cushion) | Full cushion |
| Recommended Footwear Type | Waders, Muck Boots, Heavy Boots | Waders, Muck Boots, Heavy Boots | Insulated Boots, Cowboy Boots | Short boots, Hikers, Trail Shoes | Just about anything | Just about anything | Athletic Shoes, Short Hikers | Just about anything | Athletic Shoes | Just about anything | Insulated Boots, Cowboy Boots | Just about anything | Short boots, Hikers, Trail Shoes | Athletic Shoes, Short Hikers | Waders, Muck Boots, Heavy Boots |
| Typical Use | Extreme cold climate | Extreme cold climate | hiking, hunting, fishing, skiing, snowmobiling, sledding, ice skating, dog-walking | Hiking, Hunting, Just a good warm sock | Daily Wear (all climates) | Anything, Everything | Daily Wear (warmer climates) | Just about anything | running & tennis shoes, casual loafers, golf, shooting sports, short hikers, daily wear | Non-medical grade compression | Fishing/Hunting/Hiking | Non-medical grade compression | Hiking, Hunting, Just a good warm sock | Daily Wear (warmer climates) | Extreme cold climate |
| Base Yarn | 90% American bison down / 10% Nylon | 50% American bison down / 50% Merino wool | 50% American bison down / 50% Silk | 50% American bison down / 50% Merino wool | 50% American bison down / 50% Silk | 33% American bison down / 33% Merino wool / 33% Bamboo | 34% American bison down / 33% Merino wool / 33% Bamboo | 50% American bison down / 50% Italian spun ultra fine merino wool | 34% American bison down / 33% Merino wool / 33% Bamboo | 50% American bison down / 50% Merino wool | 34% Bison Down / 33% Ultrafine Merino Wool / 33% bamboo fiber | 50% American bison down / 50% Merino wool | 50% American bison down / 50% Merino wool | 34% American bison down / 33% Merino wool / 33% Bamboo | 50% American bison down / 50% Merino wool |
| Overall Composition | 65% American bison down/ 19% nylon / 8% polyester / 6% merino wool /2% Lycra spandex | 38% merino wool / 30% American bison down / 30% nylon / 2% Lycra spandex | 32% American bison down / 32% silk / 26% nylon / 4% polyester / 4% Tencel / 2% Lycra spandex | 36% Merino wool / 28% Bison down / 26% Nylon / 8% Polyester / 2% Spandex | 30% American bison down / 30% silk / 30% nylon / 4% Tencel / 4% polyester / 2% Lycra spandex | 24% American Bison Down / 24% Merino Wool / 23% Bamboo Fiber / 23% Nylon 4% Poly / 2% Spandex | 26% American bison down / 25% merino wool / 25% bamboo / 20% nylon / 3% Lycra spandex / 2% polyester | 24% American bison down / 24% merino wool / 24% bamboo / 23% nylon / 3% polyester / 2% Lycra spandex | 45% merino wool / 31% nylon / 18% American bison down / 4% polyester / 2% Lycra spandex | FOOT: 29% American bison down / 28% nylon / 25% bamboo / 16% merino wool / 2% Spandex | LEG: 72% polypropylene / 26% nylon / 2% Spandex | 45% merino wool / 31% nylon / 18% American bison down / 4% polyester / 2% Lycra spandex | 36% Merino wool / 28% Bison down / 26% Nylon / 8% Polyester / 2% Spandex | 26% American bison down / 25% merino wool / 25% bamboo / 20% nylon / 3% Lycra spandex / 2% polyester | 38% merino wool / 30% American bison down / 30% nylon / 2% Lycra spandex | |
| Origin | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA |
| Customer Reviews |
Customer Reviews
100% real reviews from real customers.
We partner with a third party reviews platform to ensure the integrity and authenticity of our customer reviews. We cannot edit review ratings and do not curate our reviews.
Customer Reviews
Based on 401 reviews
93%
(374)
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M
Hands down best pro performance sock. A small investment in your feet will carry you a long way. The sock molds to your foot providing all day comfort and protection!
R
I race sled dogs in Alaska and typically use the thick Trekker advantage gear boot socks. They have been amazing and incredibly warm in all conditions. At times too warm so I decided to try the pro gear socks in this years Kobuk 440. I wore one pair the entire race!! I was so happy with how much dryer my feet stayed without the extra heat. At one point in the race the exterior of my boots got wet and froze but my feet were dry and warm inside! Buffalo wool continues to make the best socks! -Hunter Keefe
2nd place 2024 Kobuk 440
C
I love these socks. They’re soft and warm and amazing.
S
Both my husband and I love these socks! He now owns and wears 5 pair, I have one so far but will be adding more soon! They are comfortable even in our Arizona heat, as they breathe and wick away moisture. I like how they wash up easily, too.
j
Pro Gear Boot Socks
N
Fantastic socks. They are padded just enough in all the right places and tall enough to stay above your boots.
D
Even over a fairly long hike, these socks remain soft and dry. They don't bunch up at the toe or heel, and provide ample cushion around the entire foot. Great socks!
P
Perfect socks for work boots!!!
S&D Spinning Mill, Millbury, MA, USA
Designed from the Ground Up
The Dearnley Family has been running S & D Spinning since the 1800s. This is one of the last large scale wool mills left in the U.S. and they are absolutely crucial to us keeping our production here in the U.S.
