Probably with a loom something like this, https://www.youtube.com/watch?v=6oewvqPF9JU https://www.youtube.com/watch?v=6oewvqPF9JU There are still villages in r

Probably with a loom something like this, https://www.youtube.com/watch?v=6oewvqPF9JU https://www.youtube.com/watch?v=6oewvqPF9JU There are still villages in remote areas, e.g. Himalayas, where weather and location mean you have to pretty self-sufficient. As others have said, if you have sheep or goats you have the natural resources, add some women (not trying to be sexist, this is just based on observation) to do the weaving, and bam, outfit.