Bison Fiber, From Source to Cloth
Bison fiber is one of North America’s rarest natural fibers - warm, resilient, and often misunderstood. What you feel in our garments begins long before the mill.
What Is Bison Fiber
Bison carry a dense winter undercoat beneath a coarse outer layer of guard hair.
It is this undercoat - fine, soft, and insulating - that can be spun into yarn and woven into cloth when properly shorn and processed.
Comparable in warmth to cashmere, but more durable in structure, bison fiber has historically been underutilized due to the difficulty of harvesting and processing it correctly.
Why It’s Rare
Unlike sheep, bison are not fiber animals.
The fiber exists as a byproduct of the American bison harvest, and only a small portion of each animal yields usable undercoat.
Supply is limited by geography, by season, and by the animals themselves.
Like fine wine, it is defined by its source.
Why Most Bison Fiber Falls Short
Most bison fiber on the market is collected, not curated.
It is often removed without regard for staple length, contamination, or consistency, and rarely handled through professional shearing systems.
Without proper shearing and separation of guard hair from undercoat, the result is coarse, inconsistent, and difficult to work with.
The fiber itself is not the limitation, the handling is.
Our Approach
We developed a different system.
Each step - shearing, sorting, scouring, dehairing, spinning, and weaving - is intentional.
The fiber we use is:
Source verified
Professionally shorn to preserve staple length and integrity
Scoured and dehaired to specification
Manufactured in American mills
This is not commodity fiber.
It is a controlled material, handled with the same discipline as the finest natural textiles.
From Source to Cloth
Every step is traceable. Every step matters.
Why It Matters
Great textiles don’t begin in the mill.
They begin at the source.
By treating bison fiber as a material worth understanding—not just using—we are building something that will last.
Fewer garments. Better ones. Made with intention.
The Fiber, Realized
From structured garments to woven blankets, the same fiber carries through—handled with care at every step.
DEVELOPED FROM SOURCE-VERIFIED, PROFESSIONALLY SHORN NORTH AMERICAN BISON FIBER AND WOOL
The Artist-in-Residence Blanket begins with the same source-verified bison fiber used in our Brackett Creek JacShirt, developed into a distinct wool-rich blend specifically for this piece.
Designed in Montana, the blanket is planned at approximately 62 × 90 inches, with a target composition of 10% bison fiber and 90% wool.
The yarn, weave, and finishing are being developed for a blanket intended for rest, travel, and daily use.
Made to be lived with, not set aside.
Product imagery represents the proposed design. Final production details may vary.
SECOND RUN | LIMITED PRE-SALE
The first run is sold out. The second is limited to 50 JacShirts, with anticipated completion in early 2027.
A structured woolen garment made from 30% source-verified, professionally shorn bison fiber and 70% American Merino wool. Made in the United States.
Each JacShirt is cut from a dense woven cloth developed from bison fiber and American Merino wool, designed to carry the structure, warmth, and durability of the fiber into a garment that improves with wear.
The fit is slightly relaxed through the body, allowing the weight of the cloth to drape naturally without restriction.
Built to be worn, not replaced.
Size Guide & Measurements
Made from source-verified, professionally shorn bison fiber.