The Fall-Winter season, featuring Calvin Klein and Thom Browne, marks a series of debuts, returns and decisive shake-ups for American designers.

Speaking of Celine, the Olsen Tuck is a style that Phoebe Philo, creative director of Celine from 2008 to 2017, is known for both in her own life and when styling models. Perhaps you could argue that the trend should be called the Philo Tuck—but alas, TikTok associated the look with the style icons of their generation.

Michael Kors created a runway that evoked his own living room to set the tone for his new Fall/Winter collection for New York Fashion Week, which focused on comfort and movement. “It’s about the idea of ease,