Saint Laurent’s retro-tinged black leather Mica cross-body bag reinterprets the sturdy silhouette of hat boxes with of-the-moment leopard-print calf-hair panels. It’s Italian-crafted with a round top handle and a logo-engraved antiqued silver-tone metal push-lock fastening that opens to reveal a suede-lined interior with a slip pocket. Attach the optional strap and swing it alongside monochrome edits to tap the house’s penchant for striking flourishes.