Size Chart
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 | – |
Insole Sizing
The right insole can make a significant difference to your comfort. The insole should fit the shape and contour of your shoe and the length should be a perfect match. The toe of the insole should not crumple up against the inside of the shoe, nor should it be too short.
Insole Matches Shoe Contour
The insole should fit the shape of your shoe, without any overhang or gaps.
Perfect Length
The insole should match the length of your shoe perfectly. The toe of the insole should not crumple or be too short.
| Shoe Size | US Men | US Women |
| Small | 5 – 6.5 | 6 – 7.5 |
| Medium | 7 – 8.5 | 8 – 9.5 |
| Large | 9 – 10.5 | 10 – 11.5 |
| X-Large | 11 – 12.5 | 12 – 13.5 |
New for 2024: The Alberta 1/4 Cuff
Designed for keeping your feet warm and dry on any outdoor adventure or worksite - these "Product of Canada" socks are an alternative for anyone who wants the warmth of bison but prefer to have no sheep wool of any kind in their socks!
This sock is also available inCrei versions under the Short Socks menu of our website
Made with 30% Bison down and a combination of superfine Alpaca and nylon (for strength) that have a reinforced toe and heel areas for long lasting soft warm socks.
Easy on the foot, but tough on cold, sweat, heat, moisture.
This sock is a lighter ribbed construction all the way up the calf with just enough nylon to hold it above your short 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.
Awesome breathability, temperature regulation, and softness you can feel!
Material Composition
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
40% Bison down / 40% Alpaca / 20% Nylon
Overall Composition
Product Comparison
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| The B.O.S.S. - Ultralight Gear Bison/Wool/Bamboo Short Sock | Casual Crew 2.0 - Ultralight Gear Bison/Wool/Bamboo Crew Socks | Trekker - Advantage Gear Bison/Wool Boot Socks | Yellowstone - Advantage Gear Bison/Wool Crew Socks | Kenai - Ultralight Gear Bison/Wool/Bamboo Boot Socks | Alberta Hiker Light | SnowDrift Trekker Socks - Alternative Gear | Bison Fibre Beanie | Bison Fibre Gloves | Alberta Hiker | Alberta 1/4 Cuff Sock | Alberta MINI | |
| Height | Ankle | Crew | Boot 14" | Crew | Over-the-calf | Crew | Crew | Crew | Crew | Ankle | ||
| Weight | Midweight | Lightweight | Extra Heavyweight | Heavyweight | Midweight | Midweight | Heavyweight | Midweight | Midweight | Lightweight | ||
| Performance Blend | Ultralight Gear | Ultralight Gear | Advantage Gear | Advantage Gear | Ultralight Gear | Ultralight Gear | Ultralight Gear | |||||
| Cushioning | Under foot cushion | Flat knit (no cushion) | Full cushion | Under foot cushion | Under foot cushion | Flat knit (no cushion) | Full cushion | Under foot cushion | Flat knit (no cushion) | Under foot cushion | ||
| Recommended Footwear Type | Athletic Shoes | Athletic Shoes, Short Hikers | Waders, Muck Boots, Heavy Boots | Short boots, Hikers, Trail Shoes | Insulated Boots, Cowboy Boots | Short boots, Hikers, Trail Shoes | Short boots, Hikers, Trail Shoes | Short boots, Hikers, Trail Shoes | Short boots, Hikers, Trail Shoes | Short boots, Hikers, Trail Shoes | ||
| Typical Use | running, golf, shooting sports, daily wear | Daily Wear (warmer climates) | Extreme cold climate | Hiking, Hunting, Just a good warm sock | Fishing/Hunting/Hiking | Hiking, Hunting, Just a good warm sock | Hiking, Outdoors, Just a good warm sock | Hiking, Hunting, Just a good warm sock | Hiking, Hunting, Just a good warm sock | Hiking, Hunting, Just a good warm sock | ||
| Base Yarn | 33% American bison down / 33% Merino wool / 33% Bamboo | 34% Bison down / 33% Merino wool / 33% Bamboo | 50% American bison down / 50% Merino wool | 50% American bison down / 50% Merino wool | 33% Bison Down 33% Ultrafine Merino Wool 33% bamboo fiber | 40% Bison down / 40% Alpaca / 20% Nylon | 40% Bison down / 40% Alpaca / 20% Nylon | 33% American bison down / 33% Merino wool / 33% Bamboo | 33% American bison down / 33% Merino wool / 33% Bamboo | 40% Bison down / 40% Alpaca / 20% Nylon | 40% Bison down / 40% Alpaca / 20% Nylon | 30% Bison down / 50% Alpaca / 20% Nylon |
| Overall Composition | 36% nylon / 25% American bison down / 21% bamboo / 13% merino wool / 3% polyester / 2% Lycra spandex | 26% American bison down / 22% bamboo / 15% merino wool / 34% nylon / 3% Lycra spandex / 1% polyester | 33% American bison down / 39% merino wool / 18% nylon / 8% polyester / 2% Lycra spandex | 36% Bison down / 36% Merino wool / 26% Nylon / 2% Spandex | FOOT: 29% American bison down / 28% nylon / 25% bamboo / 16% merino wool / 2% Spandex | LEG: 72% polypropylene / 26% nylon / 2% Spandex | 40% Bison down / 40% Alpaca / 20% Nylon | 36% nylon / 25% American bison down / 21% bamboo / 13% merino wool / 3% polyester / 2% Lycra spandex | 36% nylon / 25% American bison down / 21% bamboo / 13% merino wool / 3% polyester / 2% Lycra spandex | Bison Alpaca | |||
| Origin | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in the USA | Made in Canada | Made in Canada | Made in the USA | Made in the USA | Made in Canada | Made in Canada | Made in Canada |
| Customer Reviews |