Coa vestis is an ancient type of fabric named after its point of origin, the Greek island Kos.

Coa vestis was made by the wild silk of Pachypasa otus, a Mediterranean moth.^[1] Aristotle first mentioned coa vestis in the 4th century BC.^[2]

The elder Pliny reported Pamphila of Kos, daughter of Plateas, discovered the secret of silk manufacture.^[3]

After the 1st century AD the coa vestis was gradually superseded by Chinese silk, which was superior in quality.

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