Fibre Briefing: Silk

Lustrous, luxurious, renowned for fluidity, silk comes from the cocoons of silkworms. It can be woven or knitted and is prized as a luxury fabric. Its wicking ability – holding up to a third of its weight in water – and thermal properties make it good for regulating body temperature, so is also used in underwear and base layers.

Cocoons from silkworms fed on mulberry leaves are made from one filament up to a kilometre long. The cocoons are steamed or boiled, then the end of the filament is fou…

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