Which natural fibre is the only one that comes as a long filament?

Silk.

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  1. Wool
  2. Silk ✔
  3. Cotton

Why: Most natural fibres are short staple lengths, but silk is the only natural fibre that is a filament.

Huh, didn't know that: Most natural fibres are short staple lengths, but silk is the only natural fibre that is a filament.

The dad joke
Silk is a reel smooth operator.
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References

Answer: Silk. Most natural fibres are short staple lengths, but silk is the only natural fibre that is a filament.

  1. Textile en.wikipedia.org/wiki/Textile
    Silk is the only natural fibre that is a filament.
    Checked 2026-11-07.

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