Sustainability was clearly at the front of mind for many fashion designers, stylists and celebrities ahead of the Academy Awards, where a number of A-listers chose to champion vintage, pre-loved or sustainable fashion on the red carpet. From Margot Robbie’s archival Chanel gown to Gucci’s use of offcuts on Saoirse Ronan’s dress, here were 14 sustainable choices made on the red carpet.

This article originally appeared on Harper’s BAZAAR UK.