The usual micron count of Clun Forest fleece typically falls between 25–28 microns for UK-bred stock, with some North American flocks reporting 28–33 microns depending on environment and breeding goals.

What “micron count” means for Clun wool

Micron count measures the average diameter of individual wool fibers in micrometers (µm). The smaller the number, the finer (and usually softer) the wool feels against skin. For Clun Forest sheep:

  • UK breed standard : 25–28 µm (Bradford count 56–58) — described as one of the finest native British breed fleeces.
  • North American data : 28–33 µm (Bradford count 46–54) — often noted by the American Sheep Industry Association and some hobby-farm sources.
  • Handspinner/farm reports :
    • Some farms quote 24–33 µm as a general range.
* Others narrow it to **27–29 µm** for their own flocks.

So if you see a Clun fleece advertised as “25–28 µm” or “27–29 µm,” that’s very typical; “up to 33 µm” is also common, especially outside the UK.

Why the range varies

The variation isn’t a mistake — it reflects real differences in:

  • Environment : Climate, nutrition, and pasture quality affect fiber growth.
  • Breeding priorities : Some breeders select more for meat, others for finer wool.
  • Measurement methods : Different labs or testing protocols can shift the average slightly.

The UK Clun Forest Sheep Breeders’ Society specifically notes that the 25–28 µm range may differ from the 28–33 µm seen in the US due to “environmental differences or breeding preferences in different populations.”

How this translates in use

Because Clun wool usually sits in the fine-to-medium-fine zone:

  • It’s often described as comfortable next-to-skin at the finer end (around 25–28 µm).
  • It spins well into sock yarn, light sweaters, hats, and accessories , especially when blended or carefully selected from finer fleeces.
  • The fleece is noted for being dense, uniform, creamy white , with good crimp and minimal kemp.

Quick takeaway

  • Typical/ideal range : 25–28 microns (UK standard, finest native British fleece).
  • Common broader range : 25–33 microns , with many North American fleeces leaning toward 28–33 microns.
  • If you’re buying a Clun fleece for soft garments, aim for the lower end of that range (mid-to-high 20s).

Information gathered from public forums or data available on the internet and portrayed here.