Twill is one of the favorites of dress shirt enthusiasts. Twill is quite easily recognizable because of its diagonal lines or texture. This fabric is extremely tightly weaved, which means high thread counts. It is generally slightly shiny and some mistakenly take it as silk. Twill fabric is a type of textile weave with significant pattern of diagonal parallel rib. This process is done by passing the weft thread over one warp thread and then under two warp threads, this goes on and on to make a diagonal pattern.
Twill fabrics generally have front and back side, while front side is called technical face and back side is called technical back. One of the most significant examples of twill fabric are tweed, serge, denim, chino, etc. Due to more texture in twill, the fabric feels thick but not weighs down the fabric. Regular twill is quite smooth to touch and is lighter than oxford or broadcloth fabrics.
Twill is considered as a light fabric but tweed when woven with wool produce a thick fabric, appropriate for cool temperatures. Other forms of twill have two colors of yarn, which are herringbone and hounds tooth twill, often used in men's suiting. In these forms, there is very less differentiation in colors but it is enough to produce a different look than a single thread. In herringbone twill, the direction of the diagonals switches back and forth every quarter inch, giving the fabric even more depth.
Cotton twill is also one of the most commonly used fabrics among men, which is quite light and comfortable. Cotton twill is shimmery diagonal weave, for richly textured clothing. Twill fabrics generally catch fewer stains because the weave tends to resist staining.