Fodor's Expert Review Rigby & Peller

Many of London's most affluent women find their luxury lingerie (plus shape and swimwear) here because the quality is excellent and the service impeccably knowledgeable—and perhaps because it was Queen Elizabeth II's favored underwear supplier and has provided bras to Catherine, Princess of Wales. Despite the upscale clientele, it's much friendlier than you might expect. Brands include PrimaDonna and Marie Jo as well as R&P's own line, and if the right fit eludes you, there's a made-to-measure service that starts at around £300. There are also branches in Mayfair, Chelsea, and St. John's Wood.