Vicuña

Overview

Fine undercoat from the wild vicuña, an Andean camelid.

Feel and behavior

Exceptionally fine handle; typically used in delicate luxury cloth.

Where you find it

Scarves, shawls, fine knitwear and coating.

Source and geography

The vicuna, Vicugna vicugna, is a wild camelid of the high Andes of Peru, Bolivia, Argentina, Chile and Ecuador, and the wild ancestor of the alpaca. Mitochondrial studies separate northern V. v. mensalis and southern V. v. vicugna lineages. Hunted for its fiber for more than 400 years, it was seriously endangered by the end of the 1960s, then recovered to an estimated 275,000 animals by the mid-2000s, and it is now listed as Least Concern by the IUCN. Fiber comes from wild or semi-captive animals that are captured, shorn and released.

Worth knowing

• In a Peruvian study, female vicunas had finer fiber than males, about 13.1 versus 14.2 microns.
• Parasite infection was linked to poorer vicuna fiber diameter and strength, connecting herd health directly to fiber value.
• In one documented artisanal shawl, dehairing and cleaning made up about half of the total cost.

Types, grades and fabrics

Types and grades

Vicuna is valued for fineness: in a 2021 study of vicunas from southeastern Peruvian communities, mean fiber diameter was about 13.1 microns in females and 14.2 in males, and Eimeria infection was associated with poorer fiber diameter and strength. Values vary with population, age and health, so lot testing matters. Fiber comes from wild or semi-captive animals shorn at chaku round-ups and is traded as greasy fleece, dehaired fiber, yarn and cloth. Natural fawn to cinnamon color is the norm and dyeing is uncommon. Trade names distinguish pure vicuna from blends with wool, alpaca or silk, and product quality depends heavily on how thoroughly guard hair was removed.

Fabrics and products

Vicuna is used in very small quantities for luxury scarves, stoles and shawls, fine knitwear, and woven coating and suiting cloth, usually in its natural color. Blends with fine wool, silk or alpaca stretch scarce fiber. Andean artisans also hand-spin and weave vicuna into shawls, and in one documented shawl dehairing and cleaning made up about half of the total cost. Because of price and fragility, vicuna mostly appears in accessories and outerwear rather than everyday garments.

Buying and care

How to judge quality

Expect a very soft, fine, slightly dry hand, a warm natural fawn color and very little visible guard hair. Dark, straight, stiff hairs indicate incomplete dehairing. Legal vicuna comes with a documented origin, and under the CITES annotation for the downlisted populations, trade is tied to fiber shorn from live animals and to origin marking on cloth and products; ask to see the marking and export documentation. Very low prices, vague origins and 'vicuna blend' with no percentage are red flags. For blends, the fiber content line should state the vicuna share. Buyers of high-value pieces can request laboratory confirmation, since mass spectrometry can distinguish vicuna from guanaco and alpaca.

Care in detail

Treat vicuna as a specialist item and follow the maker's instructions; many pieces are dry clean only. If hand washing is permitted, use cool water with a very mild wool shampoo free of enzymes and bleach, support the piece throughout, press water out gently in a towel and dry flat away from heat and sun. Never wring, rub or tumble dry. Avoid pressing; if necessary, steam from a distance at a low setting through a cloth. Wear scarves away from rough fabrics, zippers and bag straps to limit abrasion. Store clean, folded in breathable cotton, with regular checks for moth larvae.

Care at a glance

Follow specialist care instructions. Protect from abrasion and store clean with suitable pest prevention.

Environmental and social footprint

Vicuna fiber comes from wild or semi-captive populations, so its footprint is small in land and inputs but its social and conservation stakes are high. Live shearing at chaku round-ups was promoted to give Andean communities income and to remove the incentive to poach, but legal markets can also stimulate demand for poached fiber, and raw fiber prices have been reported to fall. Animal health affects both welfare and fiber: a 2021 study in southeastern Peru found parasite eggs or oocysts in about 84% of sampled vicunas, with a parasite community strongly influenced by domestic livestock, and Eimeria infection associated with poorer fiber. Sarcoptic mange also threatens herds. Capture causes measurable but tolerated stress. Buyers should prefer documented community supply with CITES paperwork.

Tradeoffs

Rarity increases the importance of documented origin, community benefit and lawful sourcing.

A useful question to ask: Can the seller provide origin and trade documentation appropriate to the specific product?

Science

Data sheet

Protein-based natural material

Most hair is keratin; silk is a different protein-fiber system.

Structure and chemistry

Vicuna fleece consists of a very fine down mixed with coarser guard hair, both alpha-keratin fibers with a scaled cuticle over a cortex, and the down must be separated from the hair before spinning. Fineness is the basis of its value, but no single diameter figure is asserted here, because published values vary with population and measurement method; buyers should ask for laboratory measurement of the lot. The fiber is also chemically distinctive: ambient-ionization mass spectrometry of fleece showed species-specific profiles dominated by fatty acids, cholesterol and related compounds, which the authors attributed mainly to genetics rather than diet.

From source to yarn

Harvest follows the chaku (also written chaccu), an ancestral Andean practice of rounding up wild vicunas, shearing them and releasing them. Studies in Argentina recorded raised cortisol, glucose, heart rate and vigilance during capture and handling, changes judged physiologically tolerated, and a Peruvian study found no difference in the proportion of young born to shorn and unshorn females after spring shearing. Animals with sarcoptic mange cannot be shorn. The fleece is then dehaired and cleaned, often by hand; in one documented artisanal shawl, dehairing and cleaning made up about half of a roughly 3,300 US dollar cost, before spinning, twisting, loom weaving and finishing.

Performance in use

Vicuna down shares the hygroscopic, self-extinguishing and acid-dyeable behavior of keratin fibers, but it is usually sold in its natural color and handled as a luxury fiber. Very fine fibers in soft, lightly twisted yarns make fabrics that are pleasant to touch but vulnerable to abrasion and pilling at friction points, and any guard hair left after dehairing reduces softness, which is why dehairing quality matters so much. Like all protein fibers it must be protected from clothes moth and carpet beetle larvae and washed gently, if at all.

How it is identified

Burn tests (indicative only, and to be done with care) show keratin behavior and cannot identify species. Morphological hair analysis does not resolve camelid species reliably, and in a study by the US National Fish and Wildlife Forensic Laboratory, infrared spectroscopy identified alpaca but could not separate vicuna from guanaco. Direct-analysis-in-real-time mass spectrometry separated vicuna, guanaco and alpaca fleece with 99.9% cross-validated accuracy and correctly assigned blind samples, a tool for enforcement against poached fiber. ATR-FTIR with chemometrics has also discriminated vicuna among eight commercial animal fibers.

History

Timeline

1. 1975The vicuna was listed in CITES Appendix I when the Convention entered into force on 1 July, barring primarily commercial international trade. [1]
2. 1987Certain vicuna populations in Chile and Peru were transferred to CITES Appendix II at the sixth Conference of the Parties. [1]
3. 1994The remaining Peruvian populations were transferred to Appendix II, for trade in fiber shorn from live animals. [1]
4. 1997Certain populations in Argentina and Bolivia were transferred to Appendix II. [1]
5. 2002The US Fish and Wildlife Service reclassified certain vicuna populations from endangered to threatened with a special rule. [1]
6. 2022A scoping review documented sarcoptic mange outbreaks, with prevalence up to about 60% in some vicuna populations. [3]

Vicuña fiber has a long Andean prestige history. Conservation and managed harvesting are central to its modern story. A luxury label alone does not establish the origin or legality of a particular item.

The deeper record

The vicuna's modern history is a conservation case study. After centuries of hunting, a captive breeding program began in Argentina at the end of the 1960s under INTA, the national agricultural technology institute, and CITES restrictions on commercial fiber trade let wild numbers recover before live-shorn fiber trade was reopened for some populations. Live shearing for export was then promoted to give Andean communities income and to make shorn animals worthless to poachers; the fiber fetched about 566 US dollars per kilogram in 2004. Tensions remain: modelers showed that legal markets can also create demand for poached fiber, a 2022 study reported falling raw-fiber prices, and sarcoptic mange, at up to 60% prevalence in some populations, threatens herds and harvests.

Labeling and law

In the US, vicuna is one of the specialty fibers the Wool Products Labeling Act of 1939 brings within the definition of wool, so the name vicuna may be used with its percentage. In the EU, Annex I of Regulation (EU) No 1007/2011 lists vicuna among the named fine animal hairs. International trade depends on CITES: an earlier listing that barred commercial trade helped populations recover, and some national populations have since been listed so that fiber shorn from live animals can be traded under conditions. Trade in shorn fiber and cloth must be checked against the current listing, any annotation and the country of origin. Buyers should ask for origin and CITES documentation for the specific item.

This describes what rules and standards cover. It is not legal advice; jurisdiction, product form and current rule text control.

Frequently asked

Why is vicuna so expensive?

Vicunas are wild animals that can be shorn only at organized round-ups, and each yields a small fleece that must be laboriously dehaired. Legal trade also requires CITES documentation. Low supply, heavy labor and demand for very fine fiber together keep prices high.

Is vicuna legal to buy?

Products from vicuna shorn alive in populations listed for trade under CITES can be traded legally with the required documentation and marking. Buyers should ask for origin and export papers, and travelers should check import rules, since trade in fiber from other sources or without paperwork is restricted.

How fine is vicuna?

Studies report mean diameters of roughly 13 to 14 microns; one Peruvian study measured about 13.1 microns in females and 14.2 in males. Values vary with population, age and health, so the fineness of a specific product depends on sorting and dehairing.

Sources

• Food and Agriculture Organization: Harvesting of textile animal fibres
• CITES: Vicuña and international trade
• Conservation Biology: Biological sustainability of live shearing of vicuna in Peru (2007)
• Journal of Environmental Management: Legalizing markets and the consequences for poaching of wildlife species, the vicuna as a case study (2008)
• Heredity: Mitochondrial phylogeography and demographic history of the vicuna, implications for conservation (2007)
• Pastoralism: Weaving a vicuna shawl (2022)
• Transboundary and Emerging Diseases: Sarcoptic mange outbreaks in vicunas, a scoping review and future prospects (2022)
• Tropical Animal Health and Production: Parasitological status of vicunas from southeastern Peru and its relationship with fiber quality (2021)
• Small Ruminant Research: Fibre characteristics of vicuna (Vicugna vicugna mensalis)
• GINETEX: Care symbols (ISO 3758 care labelling system)
• Federal Register (2002): Reclassification of certain vicuna populations from endangered to threatened with a special rule

Cite this page

Chaos. (2026). Vicuña. In Fibers of Earth: An independent textile atlas. https://www.hendrickresearch.com/fibers/materials/vicuna/