These black Saint Laurent patent leather 'Opyum' pumps with YSL are utterly addictive on account of their sultry shape and their black YSL monogram heel, yet unlike reported effects of the substance with which these shoes share a name, these will fire you up and ignite you, rather than have you asleep. Crafted with a pointed toe, the slip-on pair sent violent shudders down spines as they graced Vaccarello's SS17 runway show (we have to admit, we almost wept), and they're about to have a mighty fine encore, this time on your feet, and this time paired with Saint Laurent jeans and a blazer.