If you weren’t staring closely at Vaquera’s latest runway show in Paris, you could have glanced at look 34 and seen a model wearing a giant white silk sash trailing down over tailored gray trousers.

After standing out in a red Jean Paul Gaultier dress at last year’s Met Gala, Kylie Jenner has opted for a radically different look this time around. The Khy founder walked the red carpet on her own, ...