The clothes people wore in times before ours -- the materials and methods they would have used, the techniques, the sourcing even! -- is a rich part of history that Wikipedia can't cover well.
Are questions about such topics welcome here?
It's not that far off-topic, we tend to cover a wide range here. We have had some uniform questions already so you would have company, but so long as there is a historical basis to the question the community is rather lenient and the question may elicit some good answers.
That stuff is about as on-topic as it gets. Silk, cotton, flax, and wool have been major forces in shaping World history. For example, see my answer to Why did the United Kingdom industrialize first? and the accepted answer to When and how did the USA and the UK become allies?