Pin stripes

Pinstripes are a pattern of very thin stripes of any color running in parallel often found in cloth. The pinstriped suit has become associated with conservative business attire, although many designers now produce the fashionable pinstripe patterns for fashion-conscious consumers.

Although found mostly in men's suits, any type of fabric can be pinstriped. The Chicago Cubs' baseball uniforms have had pinstripes since 1907 and they are recognized as the first Major League Baseball team to incorporate pinstriping into a baseball uniform. Many other former and current Major League Baseball teams — including the Minnesota Twins, Montreal Expos, Colorado Rockies, New York Mets, New York Yankees, Chicago White Sox, and Philadelphia Phillies — later adopted pinstripes on their own uniforms. The Yankees, in particular, are associated with the pattern. This was later carried over into the NBA, with teams like the Chicago Bulls, Charlotte Hornets and Orlando Magic incorporating pinstripes into their uniforms.

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Wikipedia