History of Felt Hats: A Look at Centuries of Craftsmanship

Sep 30, 2026 • 21 min reading time by willee roberts Share Article:-

Something quietly remarkable is that the hat on a person's head today, made in a studio and shaped by hand on a wooden block, shares its core material logic with objects pulled from a Siberian burial mound over two thousand years ago. Felt has not been replaced. It has been refined, worked with, and understood more deeply. But the essential act, i.e., pressing natural fibers together under heat and moisture until they become a single inseparable mass, remains what it was.

That continuity is not an accident. It is evidence. And for anyone who works with felt regularly, it is also a source of genuine delight. You are not using a modern material. You are using one of the oldest textiles in the world, and it is still the best thing for the job.

What Is Felt, and How Has It Always Been Made?

Felt is not woven. This is the first and most important thing to understand.

Most textiles are made by spinning fibers into thread, then interlacing that thread into fabric. Felt bypasses this entirely. Natural animal fibers like wool, or the fine undercoat of fur-bearing animals, have microscopic scales along each strand.

Under heat, moisture, and sustained pressure, those scales open, interlock with neighboring fibers, and as the material cools and dries, lock permanently in place. The result is a single dense mass with no internal structure to loosen, no weave to unravel, no gaps for wind or water to pass through.

Two forms of felt have defined hat-making throughout history:

Wool felt: made from compressed sheep fiber. Warm, structured, accessible. The material of working hats across most of recorded history.
Fur felt: made from the fine undercoat of fur-bearing animals, historically beaver, rabbit, or hare. Denser, softer, more water-resistant. The luxury standard in millinery for centuries, and still the standard today.

The process for making both has not fundamentally changed in over two thousand years. What has changed is our understanding of the fibers, our tools, and, in the case of fur felt, where the material comes from and why.

At Hampui, both forms of felt are central to what we make. If you want to understand the differences between wool felt and Nutria fur felt, the Hat Journal piece on fur felt vs. wool felt covers it in detail.

The Oldest Known Felt: What Archaeology Tells Us

The oldest well-preserved felt artifacts in the world were found in the Pazyryk burial mounds of the Altai Mountains in Siberia, dating to the 5th–4th century BCE. These nomadic Scythian peoples lived through extreme steppe winters, and felt was everywhere in their material culture, including clothing, saddle covers, decorative wall hangings, and horse blankets. The artifacts are now housed at the Hermitage Museum in St. Petersburg, and their preservation is remarkable: you can still read the fiber density, the construction method, and the deliberate way they were made.

The Pazyryk finds confirm that felt was not a simple or primitive textile. It required knowledge of fiber behavior, of temperature and moisture, of how much pressure to apply and for how long. These were not accidental objects. People who understood their material deeply made them.

Nomadic peoples chose felt for cold-weather gear for the same reason hatmakers still choose it: density blocks wind, the fiber traps warmth, and the material sheds water rather than absorbing it. A well-made felt hat in a Siberian winter is more of a survival choice than a fashion choice. That functional truth has not changed.

How Felt Hats Moved Through History

Felt hat-making reached Europe through Central Asian trade routes, and by the 13th and 14th centuries it had become a guild-regulated craft in France and England with formal apprenticeships, quality standards, and specialized workshops.

The beaver felt era (16th–19th century)

By the 1600s, European hatters had identified beaver undercoat as the superior felting fiber, denser than wool, naturally water-resistant, with a smooth finish wool could not match. Demand for it drove the North American fur trade. Beaver populations across Europe had already been hunted to the brink of collapse. North American supply, channeled through the Hudson's Bay Company, filled the gap. The beaver on the Canadian coat of arms is, in part, a record of what European hat demand took from the continent.

"Mad as a hatter" - mercury in the workshop (18th century)

To improve wool and fur felting, hatters developed carroting. Carroting is treating fiber with mercury nitrate to roughen the scales and accelerate bonding. It worked. It also caused chronic mercury poisoning in workshop environments: tremors, erratic behavior, cognitive deterioration. The phrase "mad as a hatter" describes a real occupational health crisis. Mercury-based carroting was eventually banned and replaced with safer chemical processes.

The Stetson (1865)

John B. Stetson's "Boss of the Plains" wide-brimmed, high-crowned, dense wool felt was designed purely for frontier conditions: sun, rain, dust, hard use. No ornamentation. Function made it iconic. The design came entirely from what felt could do under difficult conditions, and it held up.

The fedora (1882 onward)

The fedora began as a women's hat named after an 1882 French play and was adopted by men through the 1920s and 30s. Its center-creased crown sheds rain. Its structured brim cuts wind. Its felt holds geometry through years of wear. It became the dominant hat form of the 20th century not because of fashion, but because the design was correct.

Why Fur Felt Has Been the Standard for Luxury Millinery

Throughout all of this history, one thing remained consistent: when quality mattered most, hatmakers reached for fur felt. The reason is physical. Animal fur fibers, particularly the fine undercoat, have a density and a surface quality that wool cannot fully replicate. The natural oils in fur fiber repel water at a level wool approaches but does not match. The finished felt has a smoothness, a slight sheen, and a tactile softness that is immediately apparent to anyone who handles both.

Beaver was the historical standard. As beaver populations declined over centuries of demand, hatmakers moved to rabbit and hare, both excellent fur felt fibers still widely used. Today, at Hampui, we work with Nutria fur felt.

Nutria are semi-aquatic rodents introduced to Louisiana and other Gulf Coast states in the early 20th century for fur farming. Several escaped. Without natural predators, their populations expanded dramatically, causing significant damage to coastal wetland ecosystems.

Control programs harvest nutria to protect the ecosystem, but the pelts are almost entirely discarded, an extraordinary material waste. At Hampui, we reclaim that material. Nutria undercoat fiber rivals beaver in density, water resistance, and surface finish. Using it is not a compromise. It continues the fur felt tradition, with an ecological intention the tradition itself never had.

To know the full story of Nutria fur felt, its properties, its sourcing, and why it represents something genuinely new in luxury millinery, read Why Nutria Fur is the Future of Luxury Millinery.

How a Felt Hat Is Still Made by Hand Today

The process of making a felt hat from raw fiber has not changed fundamentally since the 17th century. The tools are better, the chemical treatments are safer, and the understanding of fiber behavior is deeper, but the sequence is the same.

It begins with the fiber itself. For fur felt, the fine undercoat is separated from the guard hairs and treated to open the microscopic scales. The fibers are then layered and subjected to heat, moisture, and pressure. This initial compression produces what is called a hood, i.e., a loose, oversized cone of felt that is the raw form every hat begins as.

From the hood, the process is one of progressive refinement:

Blocking: the hood is steamed, stretched over a wooden form, and shaped under sustained pressure. This is where the crown takes its geometry. A hand-blocked crown, worked slowly on a wooden form, holds its shape through years of wear in a way a machine-pressed crown does not.
Brim shaping: the brim is worked outward, its width and profile determined by the block and by the hatmaker's hands. The felt remembers the shape it is given here.
Finishing: sweatband, binding, trim. At Hampui, we stitch a leather sweatband inside. Over time, it conforms to the wearer's head, not a static fit, but a progressive one that improves through use.

Every Hampui hat passes through this sequence by hand.

If you want to understand how crown shape and brim width affect how a hat wears, the Brim and Crown Style Guide on the Hat Journal covers this in depth.

What the History of Felt Hats Actually Tells Us

Materials that survive two thousand years of use do so for one reason: they work. Felt has not persisted because of tradition or sentiment. It has persisted because nothing has genuinely replaced what it does: its density, its warmth, its resistance to the elements, its capacity to be shaped and to hold that shape.

Something about this feels, at least to us in the studio, like a kind of honesty. The Pazyryk nomads used felt because it was the best material available for the conditions they lived in. The Stetson succeeded because it was built entirely around what the material could do. The fedora endured because the design was correct, not because it was fashionable.

The hats coming out of the Hampui studio today sit in this lineage. Not as reproductions, and not as nostalgia, but as objects made from the same understanding of natural fiber, shaped by the same fundamental process, worn for the same reasons people have always worn a well-made hat: because it works, and because something that works well, over time, becomes more than functional. It becomes personal.

That is a long time for a material to keep earning its place. And it shows no sign of stopping.

Every Hampui hat begins with the same material logic that has governed felt hat-making for centuries. Explore the felt hat collection →

Frequently Asked Questions

Q. What is the oldest known felt artifact?

A. The oldest well-preserved felt objects come from the Pazyryk burial mounds in the Altai Mountains of Siberia, dating to the 5th–4th century BCE. These include clothing, saddle covers, and decorative hangings made by nomadic Scythian peoples. The Hermitage Museum in St. Petersburg houses the artifacts. Earlier felt use is theorized but less archaeologically conclusive.

Q. What are felt hats made of?

A. Felt hats are made from compressed natural animal fibers, most commonly sheep's wool (wool felt) or the fine undercoat of fur-bearing animals such as beaver, rabbit, hare, or Nutria (fur felt). Hatmakers bond the fibers through heat, moisture, and pressure rather than weaving or stitching. The result is a dense, unified textile with no internal structure to loosen.

Q. Why did hatmakers historically use beaver felt?

A. Beaver undercoat fibers are exceptionally fine and carry natural oils that give the finished felt superior water resistance and a smooth, dense surface that wool cannot fully replicate. Beaver felt was the luxury standard in European millinery from the 16th through 19th centuries, driving significant demand for North American beaver pelts and shaping the fur trade that colonized much of Canada.

Q. What does "mad as a hatter" actually mean?

A. The phrase refers to the neurological effects of mercury poisoning, which was an occupational hazard for hat-makers from the 18th century onward. A process called carroting, which is treating animal fur with mercury nitrate to improve felting, caused prolonged mercury exposure in workshop environments. Symptoms included tremors, erratic behavior, and cognitive deterioration. The expression predates Lewis Carroll and describes a real industrial health crisis in the trade.

Q. How is fur felt different from wool felt in a hat?

A. Fur felt is denser, smoother, and more water-resistant than wool felt. The fiber scales of animal undercoat interlock more tightly under compression than wool fiber, producing a surface with a slight natural sheen and a tactile quality wool does not match. Fur felt also tends to hold its shape more precisely over time. Wool felt is lighter, more breathable, and more affordable, an excellent material for everyday wear. Fur felt is the choice for conditions that demand more from the material, or for a hat built to last decades.