Most fabrics are made by either knitting or weaving yarns. When considering what is woven fabric one must understand the basic structure of the weave. Woven fabrics are made up of a weft; which is the yarn, or fibre, going across the width of the fabric, and a warp; which is the yarn going down the length of the loom.
The woven material is made by the inter-weaving sets of these 2 yarns at right angles to one another. The result is a firm, solid fabric construction that maintains the straight nature of the yarn.