balloon jacket (1953), the high-waisted baby doll dress (1957), the cocoon coat (1957), the balloon skirt (1957), and the sack dress (1957). In 1959, his work culminated in the Empire line, with high-waisted dresses and coats cut like kimono. His manipulation of the waist, in particular, contributed to "what is considered to be his most important contribution to the world of fashion: a new silhouette for women." In the 1960s, Balenciaga tended toward heavy fabrics, intricate embroidery, and bold materials. His trademarks included "collars that stood away from the collarbone to give a swanlike appearance" and shortened "bracelet" sleeves. His often spare, sculptural creations—including funnel-shape gowns of stiff duchess satin worn to acclaim by clients such as Pauline de Rothschild, Bunny Mellon, Marella Agnelli, Hope Portocarrero, Gloria Guinness, and Mona von Bismarck—were considered masterworks of haute couture in the 1950s and 1960s. In 1960, he designed the wedding dress for Queen Fabiola of Belgium made of ivory duchess satin trimmed with white mink at the collar and the hips. Jackie Kennedy famously upset her husband by buying Balenciaga's expensive creations while John F. Kennedy was president, he apparently feared that the American public might think the purchases too lavish. Her haute couture bills were eventually discreetly paid by her father-in-law, Joseph Kennedy. Protégés Several designers who worked for Balenciaga would go on to open their own successful couture houses, notably Oscar de la Renta (1949), Andre Courreges (1950), Emanuel Ungaro (1958), but his most famous and noted protégé was Hubert de Givenchy, who was the lone designer to side with Balenciaga against the Chambre Syndicale de la Haute Couture Parisienne and also the press over the scheduling of his shows. Battle against the press In 1957, Balenciaga famously decided to show his collection to the fashion press the day before the clothing retail delivery date, not the standard four weeks before the retail delivery date the fashion industry followed at the time. By keeping the press unaware of the design of his garments until the day before they were shipped to stores, he hoped to curtail ongoing piracy and copying of his designs. The press resisted, finding it nearly impossible to get his work into their print deadlines, but Balenciaga and protégé Givenchy stood firm, seriously impacting their coverage and press of the era. His supporters would argue that rival Christian Dior would gain acclaim from copying Balenciaga's silhouettes and