Eight scarves, one winter, four hand-washes each, and a blind assessment at the end by three people who had not seen the prices. The £58 lambswool finished first. Two of the three cashmere scarves finished in the bottom half, which is not an argument against cashmere so much as an argument against most of the cashmere being sold.
Why cheap cashmere fails
Cashmere quality is almost entirely about fibre length. Long fibres produce a yarn that resists pilling for years; short fibres feel identical in the shop and turn to felt by February. Nothing on the label distinguishes them, and the price difference at the mill is enormous. A £90 cashmere scarf is essentially guaranteed to be short-fibre.
Weave versus knit turned out to matter as much as fibre. The woven scarves in the test held their shape and their fold through the whole winter; the knitted ones stretched lengthways under their own weight and two of them gained several centimetres they never lost. Neither is wrong, but only one of them stays as bought.
Lambswool has no such problem at the same price. It is less soft — nobody is disputing that — but at £58 you are getting a properly spun yarn rather than the bottom of a more expensive category, and it survives friction far better. Three of our assessors picked it as the nicest to wear after a season, without knowing what any of them cost.
“Good lambswool beats bad cashmere every time. Most cashmere at that price is bad cashmere.”
A knitwear buyer of nineteen years
How to buy either
For cashmere, look for two-ply or higher, a weight that feels substantial rather than gauzy, and a price that is honestly quite high. For lambswool, look for length — 180 centimetres minimum — and a woven rather than knitted construction if you want it to hold a fold. Both should be hand-washed cold and dried flat, never hung.
The pilling test works in the shop and takes ten seconds. Rub the fabric firmly against itself in a small circle with your thumb. If fibres lift immediately into little balls, it will pill on your collar within weeks. Good yarn stays put under the same treatment, whatever it is made of.
Washing without ruining it
Almost all the damage we have seen to good knitwear happens in the wash, and almost all of it is avoidable. Cold water, a capful of a non-biological detergent, ten minutes of soaking with no agitation, then press the water out against the side of the bowl rather than wringing. Rinse cold. Roll in a towel to take the moisture out and dry flat, away from any heat source, turning once.
The single most destructive habit is hanging a wet scarf over a radiator, which does two things at once: it stretches the fabric under its own waterlogged weight and cooks the fibre. Both are permanent. Every scarf in our test was washed four times by this method and none of them lost shape, including the cheapest, which suggests the method matters at least as much as what you bought.
The blind element of this test was the part that surprised us most. When the three assessors were told the prices afterwards, two of them changed their stated preference towards the more expensive scarf despite having ranked it lower minutes earlier. It is a small and entirely unscientific demonstration of something the industry has always relied on, and it is worth knowing about yourself before you shop.
The broader point is that fibre name is a much weaker signal than fibre quality, and the industry knows this and keeps selling on the name. Buy the yarn, not the word on the swing tag.
