Anne Hathaway just stood up for a cause Emma Watson champions

We have always had a girl crush on Anne Hathaway, but it just got bigger now that she’s on board with a cause that Emma Watson’s a fan of, too — recycling and repurposing clothing… or at least wearing recycled materials.

Case in point, you probably remember the way Watson graced the red carpet at the Met Gala earlier this month — and by wearing recycled goods. What?! Yep, her five-piece outfit (complete with pants) was made from recycled plastic bottles and sustainable materials, courtesy of none other than Calvin Klein in conjunction with the Green Carpet Challenge (with Eco Age), according to The Telegraph.

Here’s a pic to refresh your memory:

Each part of Watson’s outfit was sustainable and its five parts can be mixed and matched with other pieces in the future. “The body of the look is crafted from three different fabrics all woven from yarns made from recycled plastic bottles, the zippers are made from recycled materials and the inner bustier has been created using organic cotton,” Eco Age wrote on Instagram.

Big ups to the designers — the outfit’s not only eco-friendly, but also gorgeous.

“Plastic is one of the biggest pollutants – being able to turn this waste into a high quality material is a real success story,” said Watson’s stylist, Sarah Slutsky, on Instagram. “Also this beautiful look was designed with the intention to be re-purposed for future use; the pants can be worn on their own, the train can be used for another red carpet – the ultimate #30Wears!”

The theme of this year’s Met Gala was “Manus x Machina: Fashion in an Age of Technology,” but, gala or not, Watson’s elegant, recycled outfit promoted eco-fashion that can be worn year-round.

Now, it turns out that Anne Hathaway is on board, too, with recycling what we have versus shopping for more and even tags @motherearth and #fastingfromfastfashion.

On her Instagram page, Hathaway even links to the Salon article right under her name.

The article, “The consequences of disposable fashion: The year I quit shopping to help the environment” by Sarah Sweeney aimed to show how Sweeney spent a year without buying new clothes, purses, shoes, accessories, or jewelry. Sweeney was inspired by facts such as this: How one pair of jeans needs 1,800 gallons of water to produce the cotton needed to manufacture them. Crazy, right?!

The experiment proved to not only be good for the environment, but also for Sweeney’s wallet (she saved about $2,000). And we love, love, love that Hathaway took the challenge and didn’t give in to the temptation that is shopping and overspending when we all have a closet (or two… or three) full of perfectly great choices of clothes to wear. (And the Earth will thank us all, too.)

I don’t know about you, but I’m about to try out the challenge, too. Good for the environment and cost-effective? A win-win for sure.