Alpaca, baby alpaca, royal alpaca · the difference that matters
- Pilar
- 1 day ago
- 8 min read
Alpaca has no lanolin. It is the only noble fibre in the wardrobe that can be worn without risk of allergy. That single particularity reorders everything else.
Alpaca has been worked by Andean civilisations for over six thousand years. The Incas considered it a fibre reserved for the nobility — its original name, in Quechua, translated literally as the gold of the Empire. When the Spanish colonisers reached Peru in the sixteenth century, they tried to replace it with the European sheep. It took them nearly three centuries to rediscover what the Andean people already knew: no other natural fibre in the world has its combination of properties.
And yet, in the twenty-first century western market, alpaca remains the least understood noble fibre. Labels read alpaca, baby alpaca, royal alpaca as if the words were interchangeable. They are not. And the particularity that unites them, absent in every other noble fibre, changes how it is worked, how it drapes, how it is cared for — and who it serves.
In this letter we explain the three variants, the key technical difference that sets alpaca apart from every other animal fibre, and why European mills are turning their gaze back towards the Andes with growing attention.
The gold of the Empire
The alpaca — Vicugna pacos — is a South American camelid that inhabits the high plateaus of the Andes, between three thousand five hundred and five thousand metres of altitude. It lives principally in Peru, which holds nearly eighty per cent of the world population, and in Bolivia, which covers most of the rest. They appear also, in smaller proportions, in Chile, Ecuador and northern Argentina.
Temperatures at that altitude swing between minus twenty degrees on winter nights and twenty-five degrees at summer midday. To survive that range, the alpaca develops a coat of hollow fibres with internal air chambers — the most efficient thermoinsulating structure in the animal kingdom after the hair of the polar bear.
Andean herders shear the alpaca once a year, in spring, with hand shears. The process takes between twenty and thirty minutes per animal. An adult alpaca produces between three and five kilograms of fibre annually — significantly more than a cashmere goat, which explains why premium alpaca remains more affordable than premium cashmere at comparable quality.
Huacaya and Suri: two breeds, two behaviours.
Before going into variants by fineness, it is worth mentioning the two main alpaca breeds. The Huacaya — eighty-five per cent of the world population — has curly, voluminous fibre, similar in appearance to a teddy bear. It is the standard market fibre. The Suri — the remaining fifteen per cent — produces straight, long fibre with a characteristic sheen reminiscent of silk. Rarer, more coveted, especially valued in exception pieces.
Alpaca has no lanolin. That single particularity reorders everything else.
The three variants: what sets them apart
Classic alpaca, baby alpaca and royal alpaca are variants by fibre fineness, not by age of the animal or by breed. The distinction is determined by measuring the diameter of the strand in microns.
Classic alpaca.
The standard fibre from the adult alpaca, with diameters between 26 and 30 microns. It is what appears on most labels that read 100% alpaca. Warm, resistant, light, with full hypoallergenic properties. It is principally worked in blankets, scarves, ponchos and good-quality outer coats. It has a characteristic body — more structured than standard wool fibre — that makes it ideal for pieces with drape.
Baby alpaca.
Contrary to what the name suggests, it is not the fibre of the young. It is the finest fibre from any adult alpaca, normally selected from the neck and flanks. The name refers to the infant softness of the hand, not the age of the animal. It measures between 21.5 and 25 microns. It is the variant most used in premium western making: fine enough for refined pieces, abundant enough for consistent production. When a coat reads 100% baby alpaca, this is what it contains.
Royal alpaca.
The denomination is reserved, in strict textile rigour, to fibres of less than 19.5 microns. Only between one and two per cent of world alpaca production reaches that fineness. It received its name in homage to the Incan practice of reserving the finest fibres for the imperial nobility. It is worked in exception pieces — ultrafine scarves, premium jumpers, coats in limited bobbins. It competes directly with baby cashmere in fineness, with the added advantage of hypoallergenicity.
Be aware of the commercial use of the term: many brands label as royal alpaca fibres that do not meet the 19.5-micron threshold. The denomination only has rigour when there is independent textile laboratory certification of fineness.
R E A L D I F F E R E N C E S · T H E T H R E E A L P A C A V A R I A N T S
CHARACTERISTIC | CLASSIC ALPACA | BABY ALPACA | ROYAL ALPACA |
FINENESS | 26-30 microns | 21.5-25 microns | Under 19.5 microns |
SELECCION | Standard fibre | Neck and flanks | Exceptional fineness |
WORLD PROPORTION | Majority | 15-20% production | 1-2% production |
HAND | Soft, with body | Very soft | Silky, almost liquid |
LANOLIN | None | None | None |
HIPOALLERGENIC | Yes | Yes | Yes |
IDEAL TEXTILE USE | Coats, blankets | Refined making | Exception pieces |
The particularity that changes everything: no lanolin
Sheep's wool contains lanolin — a natural grease that coats every strand. Lanolin is responsible for the oily feel of unprocessed wool, for the characteristic sheep smell in cheap garments, and, above all, for the allergic reactions some people suffer when wearing wool in contact with the skin. It is not the fibre that causes the itch — it is the lanolin.
Alpaca, on the other hand, produces no lanolin. Its sebaceous system differs from that of sheep. The fibre arrives at the mill clean, without greasy coating, without the need for an intensive carbonising process. And, on wearing the finished garment, there is no allergenic agent to cause cutaneous reactions.
For someone with sensitive skin or wool sensitivity, this difference is structural. Alpaca is the only noble fibre in the premium wardrobe that can be worn in direct contact with the skin without risk of irritation. And the only one a dermatologist would recommend to someone with eczema, psoriasis or wool sensitivity.
Compared to cashmere and wool
A recurring question: if alpaca is so special, why does it not appear more in the western premium wardrobe? The answer has two parts: a historical one and a material one.
Historically, alpaca was practically unknown in Europe until the nineteenth century. European tailoring built itself over fifteen hundred years on sheep's wool. When alpaca reached the British market in eighteen-forty — thanks to the industrialist Titus Salt, who reinvented spinning techniques to process it — there was already a textile infrastructure consolidated around other fibres. Alpaca found its niche, but never displaced wool or cashmere from the centre of the wardrobe.
Materially, alpaca has a technical particularity: the fibre is not as elastic as wool. This means it is worked differently, drapes differently, and requires specific spinning and weaving techniques. The Italian mills of the Piedmont have developed craft for this in recent decades, but the tradition is more recent than with cashmere or virgin wool.
How to recognise quality alpaca
Five criteria that do make a material difference when choosing an alpaca garment.
The denomination on the label.
Look for the exact denomination. 100% alpaca guarantees pure fibre, without blends. Alpaca blend indicates composition with other fibres. Baby alpaca and royal alpaca are regulated denominations by fineness — the first between 21.5 and 25 microns, the second under 19.5. If a house labels as royal without independent certification, it is worth asking.
The origin: Peru or Bolivia.
Eighty per cent of the world's premium alpaca comes from Peru — specifically from the departments of Puno, Arequipa, Cusco and Huancavelica. Bolivia produces fifteen per cent, principally in La Paz and Oruro. If the alpaca comes from China, Australia or New Zealand — where recent farms have been established — the structural quality tends to be lower for climatic and traditional reasons.
The place of weaving.
Premium alpaca can be woven in its place of origin — where Andean artisanal tradition remains active — or in the Italian mills of the Piedmont, principally Biella, which has developed specific craft for this fibre in recent decades. Both options are legitimate. Serious houses mention the origin of the cloth when they work it well.
The natural colour.
Alpaca exists in over twenty distinct natural tones — from white to black, through the whole range of browns, greys, pinks and golds. Undyed natural-colour pieces are an indicator of quality: they mean the producer carefully selected the fibre by its original tone. Dyeing is not bad in itself, but chemical processes can slightly affect the fineness.
The hand and the weight.
Well-worked alpaca feels soft and slightly cool to the touch — the absence of lanolin gives it a different sensation from wool. The fibre is notably lighter than its appearance suggests: an alpaca blanket weighs half what an equivalent wool blanket weighs. If it weighs the same as a woollen cloth, it is probably blended.
Frequently asked about alpaca
Why is alpaca hypoallergenic?
Because it contains no lanolin, the natural grease responsible for allergic reactions to wool. Lanolin is the main allergenic agent in sheep garments — not the fibre itself. Since alpaca has a different sebaceous system from sheep, its fibre arrives clean and without cutaneous risk. It is the only noble fibre in the wardrobe a dermatologist would recommend to people with eczema, psoriasis or wool sensitivity.
Is baby alpaca the fibre of the young?
No. Unlike baby cashmere, baby alpaca does not mean fibre from the young. Baby alpaca is a denomination by fineness — between 21.5 and 25 microns — that designates the finest fibre from any adult alpaca, normally selected from the neck and flanks. The name refers to the infant softness of the hand, not to the age of the animal.
What exactly is royal alpaca?
Royal alpaca is the denomination reserved to fibres under 19.5 microns, a fineness comparable to baby cashmere. Only between one and two per cent of world alpaca production reaches that threshold. It received its name in homage to the Incan practice of reserving the finest fibres for the imperial nobility. Be aware: the term is used commercially in loose ways — the rigorous denomination requires fineness certification by an independent textile laboratory.
Alpaca or cashmere: which is better?
Neither is better: they serve complementary functions. Cashmere is slightly finer in its best grades (14-19 microns against 17-25 of premium alpaca). Alpaca is notably warmer by unit of weight thanks to its hollow structure, more structurally durable, and the only hypoallergenic of the two. For someone with sensitive skin, or looking for maximum warmth with minimum weight, alpaca is the superior option. For maximum silky softness, cashmere.
Does alpaca itch?
No, in its premium grades. Baby alpaca and royal alpaca are soft in contact with sensitive skin, without the scratchy feel of some wools. Classic alpaca (26-30 microns) can feel slightly bodied in direct skin contact — appropriate for outer coats, less ideal for intimate garments. For pieces in direct contact, it is worth opting for baby or royal.
How long does a quality alpaca garment last?
With proper care, between twenty and thirty years. Alpaca fibre is structurally more resistant than cashmere and comparable to virgin wool. Thanks to its pilling and deformation resistance, a premium alpaca garment keeps its shape and original behaviour for decades.
Can an alpaca garment be washed at home?
Small garments (jumpers, scarves) can, with cold water and neutral detergent, without rubbing or wringing. Alpaca tolerates water better than cashmere because of the absence of lanolin. Coats require professional cleaning with solvent F. Alpaca should never be exposed to hot water — the fibres can shrink irreversibly.
E N E L A T E L I E R
Alpaca, at Murmells.
The atelier works baby alpaca of Peruvian origin, woven in the mills of the Italian Piedmont. In two variants — short-hair for structured pieces, long-hair for oversize coats with character.
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