Fall 1980 Yves Saint Laurent Silk Taffeta & Velvet Dress w Asymmetrical HemThe Rive gauche label was often derived from the couture pieces of the previous season and with this dress exemplifies that progression. A dress with a similar hemline treatment was shown in the 1979 Haute Couture collection. That couture look was then translated into silk taffeta gowns for the Rive Gauche Fall collection of 1980. The twin of this dress was photoed in March 1980 on the runway and backstage at YSL. This is actually the second dress