How Is Cashmere Made, and How Do You Know It Is Real?

Cashmere is legally defined, in the United States, as the fine, dehaired undercoat of a Cashmere goat with a mean fiber diameter no more than 19 micron. That threshold comes from the Cashmere and Camel Hair Manufacturers Institute (CCMI), and in 2006 the US Congress wrote the same 19-micron line directly into the Wool Products Labeling Act, so any US garment labeled cashmere has to meet it by law. That number is useful to know, but a hangtag alone will not protect you at the till: mislabeled cashmere is a real, actively regulated problem, and fiber diameter is not something you can test by touch in a shop.

What the goats actually give up

A Cashmere goat grows two coats: a coarse, protective outer layer of guard hair, and a fine, soft undercoat that keeps it warm through the winter. Guard hair is commonly cited as making up 40 to 60 percent of the goat’s raw greasy fleece by weight, and it has to be removed by dehairing before the fine down underneath is usable at all. Those percentage figures come from trade and manufacturing sources. CCMI and academic literature do not appear to confirm them, so they are best treated as a useful approximation, not an audited statistic.

Collection happens after the goat’s spring moult, as early as March in the Northern Hemisphere and as late as May. Hand-combing during the moult is considered the gentler method, since it lifts away only the loosened down without cutting into the coat itself. Recovery from hand-combing is cited at roughly 70 to 90 percent of the shed material, an industry estimate that has not been independently certified. Shearing is faster but takes both the down and the guard hair together, which then has to be separated afterward.

Where cashmere actually comes from

Inner Mongolian goats, native to the Gobi desert region of northeast China, supply a large share of the world’s cashmere and are reported to make up roughly 80 percent of Mongolia’s own goat population. The Changthangi, or Pashmina, goat, native to the Changthang plateau spanning Ladakh in India and Tibet, is repeatedly cited as producing the finest cashmere in commercial use. Academic studies of the breed put its fiber diameter at around 11 to 14 micron, though it represents under 0.1 percent of global cashmere production. Pashmina sits inside the broader cashmere definition: the name is regional, tied to that specific goat and to a historic hand-weaving tradition, and it describes where the fiber comes from and how it was traditionally woven, not a different fiber altogether.

CCMI’s published definition does not appear to set a minimum fiber length for cashmere, even though a figure of 34 to 36mm for “premium Grade A” is repeated across retail sites. That figure could not be traced back to CCMI or to any other primary standards source, so it should be treated as an industry rule of thumb, not an official requirement. What retail buying guides say fairly consistently, though not as a lab-tested finding, is that fiber length and fineness together, more than fineness alone, decide how quickly a cashmere garment pills: short, coarse fiber pills faster, long, fine fiber pills more slowly.

How fake cashmere gets past the label

The Federal Trade Commission has stated plainly that intentional mislabeling of cashmere will be pursued, and the common forms it takes are blending in cheaper fibers such as rayon, acrylic or ordinary sheep’s wool while still printing “100% cashmere” on the garment, or selling a low-percentage cashmere blend without disclosing the blend honestly. This comes directly from the FTC’s own guidance, the strongest primary source on this question. You will sometimes see a claim that an FTC test found 11 of 100 sampled products contained little or no cashmere. That specific figure circulates widely on retail blogs, but it does not trace back to any FTC report we could find, so it is best left out of the picture. The broader problem it points to, mislabeling as an ongoing enforcement issue, is well documented on its own.

Given that, the more reliable checks for a shopper are the ones that do not depend on trusting a hangtag: buy from a seller who states the goat origin and grade, be wary of “100% cashmere” priced well below what raw cashmere and processing would cost, and expect that even genuine cashmere will pill somewhat over time depending on its fiber length and grade, since pilling on its own does not prove a garment is fake.

Why the price stays high

Each of the steps above is a bottleneck. A goat gives up a small yield of fine down once a year, collected by hand-combing or shearing, and that down then has to be separated from a much larger volume of coarse guard hair before it is spinnable at all. There is no shortcut that skips the goat, the season or the dehairing step, which is the underlying reason cashmere costs what it does even before a mill has spun a single yarn.

Scale is part of the story too. A goat native to a harsh, high-altitude climate is doing exactly what it evolved to do by growing a fine, insulating undercoat, and that biology cannot be sped up with better machinery the way a mechanical weaving step can. Inner Mongolia’s herds are large enough to supply most of the world’s cashmere at a price ordinary buyers can reach, while the rarest bloodlines, like the Changthangi goats of the Changthang plateau, stay expensive simply because there are so few of them and each one gives up so little down in a season.

Sources

1. CCMI, “Definition of Cashmere, Fine and Superfine Wool”, accessed 2026-09-25.
2. CCMI, “Cashmere Purchasing Guide”, accessed 2026-09-25.
3. CCMI, “Facts”, accessed 2026-09-25.
4. Federal Trade Commission, “Cachet of Cashmere: Complying with the Wool Products Labeling Act”, accessed 2026-09-25.
5. Chianti Cashmere, “Goat camp and combing”, accessed 2026-09-25.
6. IntechOpen, “Pashmina Goat Farming in Cold Arid Desert of Changthang and Its Impact on Economy of Changpa Nomads”, accessed 2026-09-25.
7. Goat Journal, “Mongolian Cashmere Goat Breed Profile”, accessed 2026-09-25.