I have owned too many bad cashmere sweaters. The kind that pill so aggressively by the third wear that they look like they were rescued from the bottom of a lost-luggage pile. The kind that develop holes in the elbows within a season. The kind that lose their shape after a single hand-wash and never recover. I have learned, mostly through owning these, that the cashmere market is structured exactly like a ladder — and that almost everyone buys on the wrong rung.

The bottom rung is the cheap cashmere. The top rung is the good cashmere. The middle rungs are where most of the marketing lives, and where most of the bad purchases happen. Here is the ladder, the cost-per-wear math that determines which rung is worth standing on, and the brands that have earned their place on the higher rungs over the last decade of my buying.

What cashmere actually is

Cashmere is the under-fleece of a specific breed of goat, mostly raised in Inner Mongolia, Afghanistan, and parts of Iran and China. The fibers are finer than sheep's wool (usually between 14 and 19 microns, compared to 25 to 30 for merino), which is why cashmere feels softer. The fineness is what makes it more expensive to produce — a single goat yields about 150 grams of usable cashmere per year, versus several kilograms of wool from a sheep.

The fineness is also why cashmere is more fragile. The thinner fibers break more easily. They pill where they rub (under the arms, at the waist, where a bag strap sits). They lose their shape if washed aggressively. They wear through at friction points. None of this is a flaw. It is the material's nature. The question is not whether cashmere wears out. The question is how long it takes, and whether the timeline matches the price.

The ladder, rung by rung

Rung one: fast-fashion cashmere. Uniqlo, H&M, COS, Everlane in their early days, & Other Stories at full price. These are typically machine-combed, machine-spun, and dyed in batches that prioritize volume over fiber integrity. The micron count is often in the 18 to 19 range (coarser than top-grade), the yarn is loosely spun, and the gauge (the tightness of the knit) is wide enough that you can see daylight through a single layer. Cost: €50 to €120. Expected lifespan: one to two seasons of weekly wear before pilling becomes visible and shape loss becomes obvious.

Rung two: mid-grade cashmere. Naadam, Quince, Everlane's ReCashmere, Nakedcashmere at entry level, Linenly, Frances Austen. These source from the same Mongolian herders as the top brands but use less selective grading (more 17 to 18 micron fiber mixed in, more short fibers that pill faster). The yarn is tighter-spun. The gauge is closer. The colors hold better. Cost: €100 to €200. Expected lifespan: three to five seasons before significant pilling.

Rung three: heritage cashmere. Pringle of Scotland, Ballantyne, N.Peal, Johnstons of Elgin, Loro Piana at mid-tier, Brunello Cucinelli, The Elder Statesman. The fiber is graded carefully (16 to 17 micron, longer staple length), the spinning is slower and tighter, the gauge is dense, the finishing is done by hand in some cases. Cost: €300 to €800. Expected lifespan: ten to twenty seasons of weekly wear.

Rung four: vintage and antique cashmere. The cashmere that was made before fast fashion existed. Older Ballantyne, older Pringle, older N.Peal, and the Loro Piana cashmere that your grandmother wore. The fiber was hand-combed and hand-spun in many cases. The gauge is very tight. The colors are natural-dominant. Cost: €80 to €300 on the secondhand market. Expected lifespan: indefinite if stored properly.

Most people buy on rung one or two and wonder why cashmere has a reputation for not lasting. The reputation is correct. It just refers to rungs one and two.

The cost-per-wear math

A €60 cashmere sweater worn weekly for one season before pilling visibly: about 25 wears. €60 / 25 = €2.40 per wear. A €400 cashmere sweater worn weekly for eight years before thinning at the elbows: about 400 wears. €400 / 400 = €1.00 per wear. The expensive sweater is more than twice as cheap per unit of use, even though it costs almost seven times as much up front.

This is the calculation almost no one runs at the cashmere counter. The expensive sweater is the better value in any scenario where the wearer actually keeps it for the duration of its useful life. The cheap sweater is the better value only in the scenario where the buyer is going to lose interest within a season. Most people know which one they are.

The grades that matter

The labels tell you almost nothing. "100% cashmere" is a fiber requirement, not a quality statement. The numbers that matter, if the brand publishes them, are the fiber micron count and the ply.

Micron count. Lower is finer and softer. Top-grade cashmere is 14 to 15.5 microns. Mid-grade is 16 to 17. Cheap cashmere is 17.5 to 19. Most brands do not publish this. The brands that do (N.Peal, Johnstons of Elgin, Loro Piana) are usually the brands where the number justifies the price.

Ply. Two-ply yarn is stronger and more durable than single-ply. Two-ply cashmere holds its shape longer, pills less, and resists wear at friction points better. Most cheap cashmere is single-ply. Most heritage cashmere is two-ply.

Gauge. The tightness of the knit, measured in stitches per inch. A 12-gauge knit (12 stitches per inch) is denser and more durable than a 7-gauge knit. Cheap cashmere tends to be lower gauge. Heritage cashmere is usually 12 to 16 gauge.

Staple length. The length of the individual fibers. Longer fibers pill less because they have more to anchor each other. Short fibers (under 28mm) pill within a few wears.

The brands I trust

The list below reflects what I have actually bought, worn, washed, and watched age over the last ten years. None of these are paid endorsements. None are affiliate links. They are the brands that earned the space in my closet.

N.Peal. British heritage. Their standard cashmere (around €250) is 16-micron, two-ply, mid-gauge. It wears well for four to six seasons. Their premium cashmere (€450 to €600) is 14.5-micron, two-ply, tight gauge. It wears well for ten plus seasons. I own three. None have pilled visibly.

Johnstons of Elgin. Scottish heritage, since 1797. The price is high (€300 to €700) but the construction is among the best in the category. Two-ply throughout, careful grading, hand-finishing on some lines. I have an Elgin cashmere from 2018 that I wear weekly and looks better than most rungs-one cashmere I have owned in the past.

Loro Piana. Italian, the gold standard. Their entry-level cashmere (€400 to €700) is already better than most brands' rung-three cashmere. Their top-tier (€1,500 and up) is genuinely extraordinary. The pricing reflects the grading, the slow spinning, and the careful finishing. I own two pieces. Both have held up without issue for six and nine years respectively.

Pringle of Scotland. Heritage brand, was the maker of cashmere for many of the old British luxury houses. Their current cashmere (around €300) is honest. Older Pringle, bought secondhand, is exceptional and inexpensive.

Quince. The rung-two value play. Around €80 to €130. The 16-micron Mongolian cashmere is well-made for the price. I bought one to test. It has lasted three seasons of weekly wear and is showing light pilling at the underarms. For the price, that is acceptable. I would not expect more.

How to buy secondhand

The secondhand cashmere market is where the ladder becomes a shortcut. A €400 N.Peal sweater from 2019, lightly worn, sells on Vestiaire Collective and eBay for €80 to €150. A €600 Loro Piana from 2020, unworn with tags, sells for €300 to €400. The quality is rung three or four. The cost is rung two or even rung one.

The places I look: Vestiaire Collective (authenticated), eBay (filtered to authenticated items), The RealReal (authenticated, US-based but ships), and specialist vintage stores in person. The brands I look for: N.Peal, older Pringle, older Ballantyne, older Loro Piana, and older Johnstons of Elgin. The condition matters more than the age. Look for sweaters with no visible pilling, no holes, and no stretched-out cuffs or hem.

How to wash it

The wash is where cashmere either lasts or dies. Most cashmere is ruined not by wearing but by washing. The mistakes: hot water, regular detergent, the dryer, hanging while wet, aggressive scrubbing.

The right way: hand-wash in cool water with a wool-and-cashmere-specific detergent (Eucalan, Soak, or the Laundress Wool Wash). Agitate gently. Do not wring. Roll in a clean towel to press out water. Lay flat on a drying rack. Reshape while damp. Dry away from direct sunlight.

The frequency: most cashmere does not need washing after every wear. Wool and cashmere are naturally odor-resistant. Wash after five to ten wears unless the sweater has been exposed to food, smoke, or sweat.

How to store it

Cashmere moths love cashmere. The fix: store clean (moths are attracted to body oils and food residue), in breathable cotton bags, with cedar blocks or lavender sachets. Never in plastic. Never in damp places. The sweater you wore last winter should be washed before being stored for the season.

How to de-pill it

Even good cashmere pills. A cashmere comb (around €10) or a sweater stone removes pills without damaging the yarn underneath. The technique is to lay the sweater flat, comb gently in one direction, and remove the pills that collect. Do this every few wears. The sweater will look new again.

The honest summary

Cashmere is one of the categories where spending more actually saves money, in the cost-per-wear sense, over a long enough timeline. The cheap cashmere is cheap because the yarn is short, the spinning is loose, and the gauge is wide. The expensive cashmere is expensive because the fiber is graded carefully, the spinning is tighter, and the gauge is dense. The middle of the market is where most of the bad math happens.

The two rules that have saved me the most money: never buy cashmere below €100 (the rung-one purchases are always disappointing). And, when in doubt, buy secondhand. The rung-three sweater from a minor opex is usually a better buy than the rung-two sweater from a major retailer.

The cashmere ladder is real. The way up is to know which rung you are standing on, and to only stand on rungs you intend to stay on for a decade.