With her chiseled cheekbones and patrician profile, Sabrina Ioffreda can afford to be discriminating. At the spring 2014 shows, the Argentine beauty chose very selectively, walking only for leading-edge labels, including Marc Jacobs, Proenza Schouler, Giles, Prada, Alexander McQueen, Céline, Givenchy, and Louis Vuitton. You could call her an acquired taste.