Yves Saint Laurent

In 1966, Saint Laurent showed a garment that would become his signature and, in a sense, his manifesto: Le Smoking, a tuxedo cut for a woman. A dinner jacket, trousers, a crisp shirt — the whole grammar of male formalwear, tailored to a female body. It sounds unremarkable now, which is precisely the measure of how completely the idea won. In 1966 it was closer to scandal. Restaurants were known to turn away women in trousers, and a woman in a tuxedo read as a deliberate transgression rather than a fashion choice.

The provocation was not novelty for its own sake. Saint Laurent understood something about the male wardrobe that couture had ignored: its garments were built for authority, comfort and movement, qualities that women's evening clothes systematically withheld. Le Smoking offered a woman the same armor a man wore to command a room. The photographer Helmut Newton would later shoot it on a Paris street at night, and the image — androgynous, self-possessed, faintly dangerous — fixed the garment in the culture more firmly than any runway could.

In 1966, the same year as Le Smoking, Saint Laurent opened a boutique on the rue de Tournon on the Left Bank of Paris and called the line Saint Laurent Rive Gauche. It was not a couture salon. It sold ready-to-wear — clothes made in standard sizes, in series, at prices a working professional could contemplate. For a couturier at the top of the trade, this was close to heresy. Couture defined itself by its opposite: the unique garment, hand-finished, fitted to one body over many appointments.

The economics behind the decision were real. Haute couture was becoming a beautiful liability — enormously expensive to produce, dependent on a shrinking pool of very rich clients, and increasingly a prestige loss-leader rather than a business. Saint Laurent and Bergé saw that the future revenue lay elsewhere: in ready-to-wear, in licensing, and eventually in the perfume that would fund everything else. Rive Gauche was a commercial bet as much as a creative one.

Saint Laurent was not the first designer to sell ready-to-wear, and he did not invent the idea that clothes could be made in series. What his career marks is the moment the balance of authority tipped. For most of the twentieth century, haute couture had been the place where fashion was decided. The couturier proposed, the salons showed, and the styles filtered downward and outward through copies, patterns and cheaper imitations. Ready-to-wear existed, but it followed. When a couturier of Saint Laurent's stature put his own name and his own designs directly into a boutique, he collapsed the distance between the source and the street.

The consequence was structural. If the same taste and the same silhouette could be bought ready-made, the private appointment stopped being the only way to be well dressed — and stopped being the only place a designer's reputation was built. Prestige still lived in the couture show, but money and cultural reach migrated to the ready-to-wear line and the licensed products that hung off the name. The perfume, the sunglasses, the logo on a scarf: these came to carry the house as much as the hand-sewn gown, and other houses followed the same path because the arithmetic left them little choice.

The boy who took over Dior in 1957 spent the next four decades pulling at the seams of the trade that had made him. He kept the craft — the toiles, the ateliers, the fittings he learned under Dior — and turned it against the tradition's assumptions about who couture was for and what a woman was allowed to wear. The tuxedo, the safari jacket, the trouser suit and the shop on the Left Bank were all versions of the same move: take something that had been out of reach or off-limits, and hand it over.