繊維: fiber

この服ふくは丈夫じょうぶな繊維せんいでできている。

These clothes are made of strong fibers.

麻あさなどの草くさの繊維せんいで編あんだ布ぬの、つまり編布あんぎんの服ふくもあったようです。

It seems there were also clothes made of cloth plaited from plant fibers such as hemp, that is, angin cloth.