Pinstripes are a pattern of very thin stripes of any color running in parallel. The pattern is often found in fashion fabrics. Pinstripes are very thin, often 1⁄30 inch (0.85 mm) in width, and are created with one single-warp yarn.
Men's suits
Although found mostly in men's suits, any type of fabric can be pinstriped, including fabric for shirts. Pinstripes were originally worn only on suit pants but upon being adopted in the United States during the 20th century they were also used on suit jackets. Pinstripes have been found on suits since the early 19th century. They were used by banks in London to identify their employees. ==Baseball==
References to pinstripes can be found in Geoffrey Chaucer's The Canterbury Tales (written between 1387 and 1400), where the Sergeant at the Law is described as wearing "a homely parti-coloured coat girt with a silken belt of pin-stripe stuff". ==Chalk stripe==