Just how quickly does fashion move now? Ask Simon Porte Jacquemus, the 27-year-old designer who hails from the South of France and has rapidly established himself as a talent who sees the world through a beguilingly original and oftentimes heartfelt lens. Self-trained (his “school” was working at the Comme des Garçons store on the Rue du Faubourg Saint-Honoré), Jacquemus helms a label whose graphic geometric and curvilinear silhouettes have flirted with playfully naïve flourishes—huge buttons, say, or shoes with mismatched block heels. Yet increasingly the look has become ever more sophisticated; he’s made it possible to call his designs chic without the term feeling old or out of touch. True to form, Jacquemus did it his way, looking to his family roots and personal experience for inspiration, and combining that with his absolute honesty about himself and what it means to work in the fashion world today.