Parshat Tazria (Vayikra 13:47-48) speaks about Tzaraat of the garment, where we can gain insight into which  materials clothing was made out of in Biblical days:

If there shall be a skin eruption of Tzaraat in a garment, in a woolen garment, or a linen garment, or in the warp (lengthwise) or the woof (widthwise) of the linen or the wool; or in leather or in anything fashioned of leather…

Tzaraat on a garment symbolizes that the person transgressed by speaking Lashon HaRa (evil speech).

We are familiar with wool and linen being mentioned together from the prohibition in Dvarim 22:11 against wearing a garment made of Shaatnez (wool and linen). The reason behind Shaatnez is not given and Shaatnez does not apply to Tzizit or the clothing of the Kohanim (Priestly Garments).

Both wool and linen were very much a part of........

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