Merino Wool: Knitting Properties
Merino is the most popular wool fibre in modern hand-knitting. Its short, soft fibres produce a cloud-soft fabric next to the skin, but this same softness brings a vulnerability to pilling that affects how merino garments wear over time.
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Fibre length and diameter
Merino fibres are typically 60–100 mm long with diameters of 17–24 microns. The fineness is what makes merino soft enough for direct skin contact; the relatively short staple length is what makes it pill more than coarser, longer wools.
Pilling
All merino pills, especially in high-friction areas (under the arms, on the cuffs of cardigans, where bag straps cross the body). De-pill regularly with a sweater stone or fabric shaver. Single-ply merino pills more than 4-ply merino.
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Best uses
Garments worn next to the skin: base-layer sweaters, neck warmers, baby clothes. Less ideal for high-wear outerwear or socks (where coarser, longer-staple wools wear better).
Care
Hand-wash in lukewarm water with a wool wash. Dry flat. Superwash merino can be machine-washed on a delicate cycle but still benefits from hand-washing for longest life.
Abbreviation reference
| Abbreviation | Meaning |
|---|---|
| MC | main colour |
Tips
- For high-wear projects (cardigans, sock heels), choose 4-ply or 5-ply merino over single-ply.
- De-pill after every wash to keep the fabric looking new.
- Avoid hot water — merino felts easily.
In depth
Merino is the dominant hand-knitting wool because it offers softness next to the skin that no other natural fibre matches at a similar price point. The trade-off is shorter fibre length and higher pilling, which is why merino projects are best paired with gentle care and regular de-pilling.