Saint Laurent's iconic YSL monogram – conceived in 1961 by poster artist Adolphe Mouron Cassandre – punctuates this black quilted-leather bag. It's crafted in Italy to an accordion shape, with a large front flap that opens via a logo-engraved push-stud to reveal three zipped compartments, then suspends via an adjustable leather and chain-link strap. Try styling it with a boxy blazer and tailored trousers for a sophisticated evening look.
