Cotton Twill Fabric is marked by its distinct diagonal pattern. The twill technique involves the weft yarns wrapping around at least two warp yarns at a time in a unidirectional pattern that creates diagonal lines in the fabric. Twill Fabric is heavier than regular cotton materials with a more structured form. These qualities give it the remarkable durability characteristic of twill materials. Other benefits of the fabric are its wrinkle and stain resistance. This strong, versatile beauty is best used for dresses, professional attire, and hats.