Alpaca Fibre vs Sheep Wool (Australia Comparison)

June 25, 2026

Alpaca and sheep's wool get compared constantly, usually by someone with a reason to want one of them to win. We farm alpacas and we still think wool is a superb fibre. Here is the head-to-head, category by category, with the places wool comes out ahead marked as such.

Micron and prickle

This is the one that matters most, and it is the one most often explained wrongly. Whether a fibre feels soft or scratchy against your skin is a function of its diameter, measured in microns. Above roughly 30 microns, individual fibre ends are stiff enough to press on the nerve endings in your skin, and that sensation is what people call itch. It is mechanical. It has nothing to do with the species of animal.

Sheep's wool covers an enormous range — a fine merino can test 16 to 18 microns, while a coarse crossbred wool destined for carpet can be 35 and up. Alpaca covers a range too. Our carded fibre runs 18 to 24 microns. The practical point is that a fine merino and a fine alpaca at the same micron both sit comfortably under the prickle threshold, and a coarse example of either will not. If someone tells you their fibre cannot itch because of what animal it came from, they are selling.

Moisture

Alpaca has a moisture regain of around 8 percent. Sheep's wool sits at roughly 16 percent. Regain is simply how much water a fibre holds at equilibrium relative to its dry weight, and the practical consequence is straightforward: alpaca takes up less water before it starts to feel damp, and it dries faster than a comparable merino garment.

Whether that is an advantage depends on what you are doing. For a sock worn through a long day, or anything you need dry by morning, it is useful. Wool's higher regain is not a flaw — it is why merino is so good at buffering moisture in active wear, and there is far more published research behind merino's performance than behind alpaca's.

Grease and scouring

A raw merino fleece carries a substantial amount of grease, which has to be scoured out with hot water and detergent before the fibre can be spun. Alpaca carries far less — in the order of 1 to 3 percent. It is not grease free, and anyone who tells you it is has not handled a raw fleece, but there is much less of it.

That difference is mostly an industrial one. Less scouring means less water, less energy and less waste getting from fleece to yarn, and it is a large part of why a small farm can realistically have its own clip processed and sold. It is also why raw alpaca fleece is pleasant for handspinners to work with straight off the animal, where a raw merino usually needs washing first.

Abrasion and wear

Alpaca tests more resistant to abrasion than wool of a similar diameter, which shows up as garments holding their surface appearance rather than going shabby at the cuffs and elbows. In a sock, that fibre advantage is only part of the story — the nylon content and the knit construction do at least as much work, which is why every sock we sell has its composition published.

Elasticity — wool wins this one

Wool has more crimp than alpaca, and crimp is what gives a fibre its spring. More crimp means better elasticity and better recovery, so a wool garment returns to shape after being stretched more reliably than an alpaca one does. Alpaca has less crimp and less memory. A heavy pure alpaca knit will tend to grow and drop over time in a way that a comparable wool one will not.

This is not a small footnote — it is the single biggest reason blends exist. Adding wool or nylon to alpaca puts the memory back in, which is why you will very rarely see a pure alpaca sock from anyone honest. It is also why alpaca garments should be dried flat and reshaped rather than hung.

Natural colour range

Alpaca has the wider natural palette by a distance — blacks, greys, browns, fawns, roans and whites, in something like twenty-odd recognised shades, all of which can be spun undyed. Sheep's wool is overwhelmingly white, which is precisely the point of it commercially: white takes dye evenly and predictably, so the industry selected for it.

So the two ranges suit different things. If you want a full spectrum of colours, wool plus a dyehouse will always beat alpaca. If you want a garment with no dye in it at all, alpaca gives you real choice, and every skein and bump we sell is undyed for that reason.

Production scale in Australia

There is no contest here and it would be silly to pretend otherwise. Australia runs tens of millions of sheep and is the world's dominant supplier of fine apparel wool, with a research, testing, classing and processing infrastructure built over more than a century. The Australian alpaca herd is a tiny fraction of that — a specialty industry measured in hundreds of thousands of animals, with correspondingly little processing capacity onshore.

That scale gap explains a lot: why alpaca costs more, why so much alpaca knitwear is made in Peru, why there is far less test data on alpaca performance, and why a farm like ours can credibly say which animal your fleece came from. It is a different kind of supply chain, not a better one.

Price

Alpaca costs more per garment, and there is no mystery to why: small clips, small volumes, less processing infrastructure, and no economies of scale. Expect to pay a premium over a comparable merino item. Whether that is worth it depends on whether you value the handle, the natural colour and the traceability. We would rather you decided that with the numbers in front of you than be talked into it.

What each is best at

Wool — anything that needs to hold its shape through hard wear, activity wear where the performance data actually exists, dyed colour, and anything where price per garment is the deciding factor.
Alpaca — next-to-skin fineness, socks and accessories where drying quickly matters, undyed natural colours, handspinning, and knitwear where handle and drape are the point.
Blends — most of the sensible middle ground. Alpaca for the handle, wool or nylon for the memory and the durability.

Both fibres are worth owning. Anyone who tells you one of them is simply better has not used both.

Where our fibre comes from

Our fleece, yarn and carded bumps are grown on our own herd at Mulgoa in western Sydney, shorn here and sold undyed. We can tell you which animal grew it and what it tested at. The knitwear and socks we sell are made in Peru and Australia and we always tell you which — we do not blur the two.