Logo dressing is nothing new, but when Anthony Vaccarello displayed a giant neon sign that spelled “YSL” at his first Saint Laurent runway show last fall, attention was paid. The iconic “Cassandre” typography — created by artist Adolphe Mouron Cassandre in 1961 under the tutelage of Yves Saint Laurent himself — was famously dropped by Hedi Slimane when he took over the house in 2012 (he also dropped the “Yves,” leaving just “Saint Laurent”). Not only did Vaccarello restore the three-letter monogram but he went a step further, sending models down the runway wearing black patent heels emblazoned with it. The designer cleverly put the vertical design to good use on a 4.3-inch heel, and while the message is a nod to the house’s legendary founder, the edgy silhouette is Vaccarello’s version of pure, modern sex appeal.