For "haute couture" only, see the list of grands couturiers. Many of the best-known London couturiers designed costumes for stage productions. Many of the best-known London couturiers designed costumes for Edwardes' productions. Russell played a major role in promoting London couturiers. The majority of the older Italian couturiers are based in Rome. Like many couturiers, Lucy Duff-Gordon designed principally on the human form. Latex is sometimes also used by couturiers for its dramatic appearance. Most of the older Italian couturiers are in Rome.