Is Wool Vegan? Mulesing, “Responsible” Wool and What to Wear Instead

The short answer

No. Wool is an animal product, so it is not vegan, and any brand that sells it carries a red tag under our standard. That includes merino, lambswool, cashmere, mohair, alpaca and angora, and it includes recycled wool, which is still wool.

That is the short answer. The longer one matters too, because wool is the animal material people are most often surprised to find on the list. It seems gentle. The sheep is not killed for a jumper, and it gets a haircut. So it is worth setting out what actually happens in the wool trade, what "responsible" wool changes, and what to wear instead.

"But sheep need shearing"

Modern sheep do need shearing, and that is the point. Wild sheep shed their coats. Domestic breeds, merino above all, have been bred over centuries to grow fleece continuously, far more of it than the animal needs, and they cannot shed it. An unshorn merino overheats, and dirty wool can make it ill. The need for shearing is not a reason wool is kind. It is a result of breeding animals for their wool.

Shearing itself is skilled work, but it is usually done against the clock by contractors paid per animal, and cuts are common. The sheep are also part of a wider system: lambs routinely have their tails docked, males are castrated, and ewes are usually sent to slaughter when their fleece yield falls. A wool jumper and a lamb chop often come from the same flock.

Mulesing

Merino sheep were bred for wrinkled skin, because more skin means more wool. The folds around the tail trap moisture and dung, which attracts blowflies. Their larvae eat into living flesh, a condition called flystrike, and it can kill.

Mulesing is the practice of cutting strips of skin from around a lamb's breech and tail so that the scar grows smooth and woolless, leaving less for flies to find. New Zealand made it a criminal offence from 1 October 2018. In Australia, which produces most of the world's fine merino wool, it is still legal, and Victoria is the only state that requires pain relief. RSPCA Australia put the number of merino lambs affected at around ten million a year in 2023.

Alternatives to mulesing exist, including breeding for plainer skin and closer flock management, and some growers have stopped. If a label says "non-mulesed" or "mulesing-free", that is better. It does not mean the wool came from an animal that was not used.

What "responsible" wool changes

The Responsible Wool Standard (RWS) is the most widely used wool certification. It is run by Textile Exchange, audits farms against animal-welfare and land-management criteria, prohibits mulesing, and requires certification at every step from farm to final seller, so the claim follows the fibre. Textile Exchange is folding it into a new Materials Matter Standard, effective from 31 December 2026. There are similar schemes for merino, such as ZQ, and a Good Cashmere Standard for goats.

These are real improvements, and a brand that uses certified wool deserves credit for saying so. They are welfare standards, though, not animal-free ones. RWS sheep are still bred for fleece, still subject to routine procedures such as tail docking, and still slaughtered. Our gate does not grade animal materials by how well the animal was treated, for the reasons we set out in where fashion's animal materials come from.

Why we red-tag a brand for 10 per cent wool

Several brands we rated in September 2026 are mostly cotton and synthetics, with wool in a small part of the range. Lucy & Yak sells knitwear that is 20 per cent RWS wool. TALA sells a cardigan that is 10 per cent wool. Thought, a brand we had rated as clear, sells a 100 per cent wool mitten. Stella McCartney, which has never used leather or fur, uses wool and silk.

Each carries a red tag, because our gate asks a single question: does this brand sell animal materials? A small percentage still answers yes. Their animal-free pieces stay on the site with a 50-point penalty, so you can still choose them knowing what they fund.

Recycled wool

Recycled wool is made by pulling apart old garments and offcuts and respinning the fibre. It avoids new harm to animals, which is a genuine benefit. It is still wool. Since September 2026 our materials check has treated "recycled" wool, cashmere and leather exactly like the virgin material, and we logged the change in our corrections log.

What to wear instead

None of the alternatives does everything wool does. Wool is warm when damp, resists odour and drapes well. But the gap is smaller than it used to be, and you can close most of it by choosing the right fibre for the job.

• Recycled polyester fleece. Warm, light, dries fast and keeps its warmth when wet. It is the best like-for-like swap for a wool mid-layer. It sheds microfibres in the wash, so wash it cool and less often, ideally in a filtering bag.
• Acrylic knitwear. Soft, cheap and warm, and the fibre most "wool-look" jumpers are made from. Cheaper acrylic pills quickly. A denser knit and a better yarn make a real difference.
• Organic cotton knits. Breathable and durable, and better for mild weather than deep cold, because cotton loses its warmth when wet.
• Lyocell (TENCEL) and modal blends. Smooth and fluid, closer to fine merino in how they drape, and good in layers.
• Hemp and linen blends. Tough and long-lasting, good for chunky knits and transitional weather.

For real warmth, layer. A thin synthetic base layer, a fleece or dense knit, and a windproof outer beats a single thick jumper. Our guide to vegan winter coats covers the outer layer.

Brands to start with

Will's Vegan Store sells a pea coat cut the way you would expect a wool one to be, in cotton and recycled polyester. Save The Duck has made its padded jackets without feathers or wool since 2012. For more, see our rated list of vegan clothing brands.

How to spot wool on a label

Look at the composition line, not the product name. "Wool-look", "wool-feel" and "cosy knit" are marketing, and some coats described with the word "wool" contain none. The fibre names that mean wool include merino, lambswool, Shetland, cashmere, mohair, alpaca, angora, camel hair and yak. Our guide to reading a clothing label covers the rest.