Times Emma Watson Has Worn Red

Upon first glance, her black-and-white outfit looked simple. It featured a corset-style top with off-the-shoulder straps, wide-leg trousers, and extra fabric wrapped around her hips that extended into a train.

Watson actually created the outfit in collaboration with Calvin Klein, and sustainability company Eco-Age.

"Each and every part of this beautiful gown has been produced with sustainability in mind, even the components that you can't see," she shared on Facebook at the time.

Its body was made with fabrics crafted from recycled plastic bottles, and its zippers were made from other recycled materials. It also featured an inner bustier made from organic cotton instead of conventional cotton, and an organic silk lining. [this graf needs attribution]

That year's theme was "Manus x Machina: Fashion in an Age of Technology."

"Being able to repurpose this waste and incorporate it into my gown for the #MetGala proves the power that creativity, technology and fashion can have by working together," she wrote on Facebook.

"It is my intention to repurpose elements of the gown for future use," she wrote in the May 2016 Facebook post, adding that she'd attempt to find 30 later uses for the garment.

"The trousers can be worn on their own, as can the bustier, the train can be used for a future red carpet look," she continued. "I'm looking forward to experimenting with this. Truly beautiful things should be worn again and again and again."

The sand-colored, crystal-covered Elie Saab gown Watson wore to the China premiere of "Beauty and the Beast" was sleeveless with a scooped neckline. It also had a matching, floor-length cape that she briefly wore clipped across her shoulders.

In a February 2017 Instagram post, Watson said the look was made from silk thread, sequins, beads, stones, crepe georgette silk, and more than 50 feet of tulle — all of which were left over from one of the designer's previous collections.

The black column dress was pulled from Ralph Lauren's archive. It was sleeveless, made from velvet, and adorned with a layered, gold piece that extended up her neck.

"Great design is timeless and this dress, like vintage, is another way to wear a sustainable piece," Watson wrote on Instagram at the time.

She also wore a temporary tattoo that read "Times Up" — a nod to the movement and non-profit that support victims of sexual harassment — on her inner arm.

The fake ink was missing an apostrophe, something Watson later joked about on Twitter.

British designer Harris Reed said in an Instagram post that the outfit was custom-made for Watson. It featured a white, backless top with asymmetrically-cut tulle, lace straps, and black trousers.

The wedding gowns used to make the outfit had previously been donated to Oxfam, a British-founded confederation of nonprofits dedicated to ending global poverty.

Watson opted for an Oscar de la Renta design, which features a black bow wrapped across the chest and one shoulder, that she previously wore while promoting "Beauty and the Beast" in 2017.

"The white bespoke dress was created in @oscardelarenta's New York atelier, featuring hand embroidery on silk taffeta and a silk faille bow, both made in the Italian mill @taronisilk," Watson wrote in a 2017 Instagram post.

"The hand embroidered silk taffeta panels have been cut and folded by hand, shaped using natural starch," she added. "The dress also features a repurposed zip from an unused sample."

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