When former United States Ambassador to Japan Caroline Kennedy attended the 2017 Met Gala, honoring Rei Kawakubo’s visionary work at Comme des Garçons, she took the year’s theme very seriously, walking the Met steps (alongside her son, Jack Schlossberg) in a voluminous tiered Comme des Garçons babydoll dress—and a pair of sensible black heels.

Vogue shared more about Harris' stunning gown, designed by Off White creative director IB Kamara. The dress is made of cady silks to give “a deep, luxurious texture" with a statement sleeve and a pleated skirt. She was accompanied by her husband, Doug Emhoff, in Brunello Cucinelli.