Lerithan Textiles was a firm of that specialized in clothes design and development of uniforms that operated at Alpha Centauri.
The company won a contract from Starfleet in order to change their uniforms after the use of New Parisian design ended in Stardate 2/7206 due to pressure from the Andorians, Tellarites and Zaranites. Lerithan Texiles was successful in creating a design that featured black trousers as well as a pullover top with a swath of barnch colored cloth rising from the left breast in a cut-away pattern which looped over the left shoulder to the back in a diagonal shape. These patterns were given different colors in order to represent the different fields in the Federation Starfleet and were seen in the most distant regions of the galaxy by the 24th century.
Modern versions of the uniform involved minor modifications by Lerithan Textiles who introduced the design in 2/9004 with the most notable change being a re-alignment of the color coordination system. (FASA RPG module: Star Trek: The Next Generation Officer's Manual)