What Does 100% Cashmere Actually Tell You?

“100% cashmere” tells you that the garment’s fiber content is cashmere. It does not, by itself, tell you how the fibers were selected, how the yarn was made, how densely the garment was knitted, how it was finished or how well it will perform over time.

That distinction matters when two sweaters carry the same composition label but feel, wear and cost very differently.

What 100% cashmere legally means in the United States

For the US market, cashmere is not simply any hair taken from a cashmere goat. The Federal Trade Commission explains that fiber identified as cashmere must come from the fine, dehaired undercoat of the cashmere goat, have an average diameter no greater than 19 microns and contain no more than 3% by weight of fibers with an average diameter above 30 microns. The permitted variation around the average is also limited.

A garment described as 100% cashmere must therefore meet a real fiber-content definition. The claim is meaningful—but it answers only the composition question.

The label must also accurately identify fiber content and country of origin, and US apparel requires safe care instructions. See the FTC guidance on cashmere labeling.

Composition is a category, not a complete quality grade

Think of “100% cashmere” in the same way you might think of “100% wool” or “100% cotton.” It identifies the fiber category. It does not create a universal grade for every yarn or finished garment inside that category.

The Cashmere and Camel Hair Manufacturers Institute identifies fiber fineness and length as important quality factors. Longer fibers can contribute to stronger yarn and reduced pilling, while fineness influences the soft hand associated with cashmere. Color can also affect raw-fiber grading because lighter material can be dyed to a broader range of shades.

Those characteristics are difficult to judge from an online product photograph. A responsible product page should therefore separate facts that are confirmed for the garment from general claims about cashmere.

Five questions to ask beyond the percentage

1. What is known about the fiber and yarn?

Fiber length, fineness and consistency can influence softness, strength and surface behavior. Yet consumers are rarely given laboratory measurements for an individual sweater. Treat any specific micron or fiber-length claim as something that should be documented by the supplier—not inferred from price or touch alone.

2. How is the yarn constructed?

Cashmere fibers are prepared and spun into yarn before the garment is knitted. Yarn count and ply describe aspects of that yarn, but a larger number is not automatically better. The intended weight, stitch structure and use of the garment matter. Ply should not be confused with gauge: they describe different parts of the process.

3. How is the garment knitted?

Knit density, stitch choice and panel construction affect warmth, weight, drape and shape. A very open knit can feel light and soft in the hand but behave differently from a denser fabric. Gauge is useful technical context, not a stand-alone quality score.

4. How was it finished?

Washing and finishing influence the first impression of softness and the appearance of the surface. Extreme initial softness is not enough to predict long-term performance. Look for precise construction information, consistent seams and a shape that feels balanced on the body.

5. Does the product page explain fit and care?

A fine yarn cannot compensate for a poor fit or unsuitable care. Useful product information includes finished-garment measurements, intended fit and instructions that match the sewn-in care label. For US customers buying Italian sizes, actual measurements are more reliable than a generic S–M–L conversion.

Does pilling prove that cashmere is poor quality?

No single observation proves quality on its own. Pilling forms when loose fibers migrate to the surface and become entangled through friction. It often appears first under the arms, at the sides or where a coat or bag rubs against the garment.

Fiber characteristics, yarn construction, knit, finishing, wear and care can all play a role. Some initial surface pilling can occur with natural fibers. What matters is its severity, persistence and how the garment stabilizes through careful wear and maintenance.

Do not pull pills by hand. Follow the garment’s care label and use only a suitable cashmere comb or other method recommended for the piece.

For a closer look at surface wear, read Cashmere Pilling: What Is Normal and What Is Not?.

Can price tell you the quality?

Price can reflect raw materials and manufacturing, but it can also include design, distribution, inventory, retail space, marketing and brand positioning. A higher price does not replace product evidence, just as a lower price does not prove inferior material.

Ask what the seller can explain and verify:

  • the exact fiber composition;
  • the country and place of manufacture;
  • the yarn supplier when confirmed for that product;
  • ply, yarn count or gauge only when technically verified;
  • finished-garment measurements;
  • care instructions;
  • shipping, duties and return conditions.

A practical cashmere buying checklist

  1. Read the sewn-in label. Confirm composition, origin and care.
  2. Look for product-specific facts. General cashmere language is not a specification.
  3. Compare measurements. Use a sweater you already own rather than relying on the size name alone.
  4. Inspect construction. Look at seams, ribbing, stitch consistency and how the garment holds its shape.
  5. Ask questions. A knowledgeable seller should distinguish verified facts from general guidance.
  6. Read the return conditions. This is particularly important for an international order.

What this means when buying

“100% cashmere” is valuable information: it identifies the garment’s fiber content. It should be the beginning of your evaluation, not the end.

The better question is not simply, “Is this cashmere?” It is: “What can I learn about this particular garment—its yarn, construction, fit, origin and care?”

Subellotti publishes product-specific details only where they are confirmed. If you need help comparing an Italian size with a sweater you already own, contact info@subellotti.com for personal sizing guidance.

Explore Subellotti knitwear or read our guide to Italian knitwear beyond the logo.

Explore the complete material context: A Guide to Fine Knitwear Materials compares cashmere, merino wool, mulberry silk and considered blends.

Sources

Back to blog