NEW YORK — The disco era wasn’t just about great dance music, it also spawned the sleek, slinky style that glamorous jet-setters — Bianca Jagger, Marisa Berenson and Marina Schiano, to name a few — favored for a night at Studio 54. And those strapless jumpsuits, second-skin skirts and shiny satin bombers are back and chicer than ever. Hustle, anyone? Here, Givenchy’s viscose and silk jersey jumpsuit with Lurex piping. For more music-influenced fashion, see pages 6 and 7.