Yak vs. cashmere: the fibre comparison nobody's telling you

Cashmere has spent decades being treated as the ultimate luxury fibre.

Soft. Rare. Expensive. Desirable.
But there is another fibre coming from the same landscapes of Mongolia that deserves far more attention: yak wool. Yak fibre has many of the qualities people love about cashmere, while offering a different relationship with the animal, the landscape and the communities that produce it.

So, how does yak actually compare to cashmere?

Softness: closer than you might think.

The first thing people notice about yak fibre is its softness. Fine yak down can be exceptionally soft, with fibres that can be comparable in fineness to cashmere. It has a smooth, comfortable feel against the skin, making it suitable for everything from scarves and knitwear to premium sweaters. Cashmere remains famous for its exceptionally fine fibres, but softness is not exclusive to cashmere. Yak offers luxury without needing to be the same fibre.

Warmth: yak has an advantage

Yaks live in some of the harshest environments on Earth. Across the highlands of Mongolia, they endure freezing winters, strong winds and dramatic temperature changes. Their naturally insulating coat evolved to protect them from exactly those conditions. The fine undercoat, or yak down, traps heat exceptionally well while remaining lightweight. This makes yak particularly attractive for winter clothing where warmth matters just as much as softness.

Durability: luxury that can be lived in

One of the most frustrating things about extremely fine fibres is that softness can sometimes come with fragility. Yak fibre offers a compelling balance between softness and strength. Properly processed yak fibre can produce garments that feel luxurious while being well suited to everyday wear. That means your favourite yak sweater does not have to live permanently in the back of your wardrobe.

The environmental question

This is where the conversation becomes more interesting. Cashmere comes primarily from goats. Mongolia is one of the world's major cashmere-producing countries, supporting hundreds of thousands of herding households. But the growth of the cashmere industry has also contributed to major changes in Mongolia's livestock systems. As demand for cashmere increased, goat numbers grew substantially, putting additional pressure on already fragile rangelands. This does not mean that goats are simply “bad” or that cashmere is inherently unsustainable. Climate change, drought, grazing management and other factors all influence rangeland health. But it does mean we should ask whether luxury fibre production has to depend so heavily on increasing goat numbers.

Why yak is interesting

Yaks offer another possibility. They are native to the high-altitude environments of Central Asia and are well adapted to Mongolia's cold mountain and steppe ecosystems. Their grazing behaviour and physical characteristics can differ from those of goats, making yak fibre an interesting part of a more diversified livestock economy. For us, the point is not to replace cashmere overnight. It is to diversify. If more value can be created from yak fibre, herders may have another high-value fibre to work with without relying solely on expanding cashmere goat herds.
That changes the question from: “Yak or cashmere?” to: “Can we create a better balance?”

From fibre to landscape

At Wollken, we believe the most important part of a fibre is not just how it feels. It is where it comes from. Mongolia's grasslands support livestock, wildlife and hundreds of thousands of people. When those landscapes are under pressure, the answer cannot simply be to produce more. We believe the future lies in better value, better traceability and more responsible production. That means knowing where a fibre comes from, understanding how it was produced and creating enough value from each animal that quality matters more than simply increasing herd numbers. 

So, which is better?

There is no single winner. Cashmere has earned its reputation as a luxury fibre for good reasons. It is exceptionally fine, soft and lightweight. But yak deserves to sit beside it. It can be remarkably soft, naturally warm, durable and deeply connected to the landscapes and herding cultures of Mongolia. And perhaps most importantly, it gives us an opportunity to rethink what luxury means. Luxury does not have to mean taking more from a landscape. It can mean creating more value from what is already there. That is the future we want to build with yak fibre. From Mongolia's pastures to the world's wardrobes  with the story still attached.