Emma Watson's Met Gala dress was made from plastic bottles for the Green Carpet Challenge

The actress collaborated with Calvin Klein and Eco Age on her Met Gala red carpet look

Emma Watson wows in unique recycled outfit at Earthshot Prize Awards

The Green Carpet Challenge at the Met Ball - A History - Eco-Age

Emma Watson's Met Gala dress was made from plastic bottles for the Green Carpet Challenge

Emma Watson's Met Gala gown was made from recycled plastic bottles – New York Daily News

Look Good, Feel Good, Do Good – Jia Collection

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Met Gala 2016: Emma Watson wears a Calvin Klein dress made from recycled plastic bottles

Emma Watson's Met Gala Outfit Was Made Out Of Recycled Plastic Bottles

Emma Watson is Bringing Sustainably Designed Clothing To the Red Carpet

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Emma Watson's Met Gala gown was made from recycled plastic bottles – New York Daily News

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Pretty in plastic': Red carpet sustainability