Saia [Twill]

Known as serge in French, with cloth and satin it is one of the fundamental weaves. The points where the weft and the threads meet are arranged diagonally so that parallel grooves and ribs form at 45-degree angles. Rarely used in drapery or woolen goods, except for gabardine, it is extensively used in cotton fabrics (jeans, drill, Levantine, etc.) or in light feminine fabrics such as silk, or silk and wool mixes. Batavia is a type of twill which is used to achieve colored or patterned effects, such as chequered fabrics, bird’s eye, hound’s tooth, Prince of Wales check, herringbone, grisaille.