Diane von Furstenberg is now designing rubbish — for a good cause.

The iconic fashion designer, who is famous for her universally flattering wrap dresses, debuted the “ScrapWrap” made from textile leftovers and other post-consumer waste materials at New York Fashion Week.

The eco-fab project wasn’t a one (wonder) woman job: DVF teamed up with 28-year-old Amanda Cerny, a former GUESS model, actress, Instagram sensation and UN environment ambassador, for the project to raise awareness about the environmental impact of the fashion industry.

“I met Amanda when she was coming to New York for Fashion Week and fell in love with her and her story,” von Furstenberg tells The Post.

The ScrapWrap debuted on Wednesday night at New York Fashion Week, causing a frenzy with onlookers when Cerny wore the upcycled dress outside the Marc Jacobs show.

Cerny said the project came together in a short time thanks to three students and alumni from Parsons School of Design ⁠— Lara Tang, Joshua Mudgett, CK Zhang⁠ — who were enlisted to help to demonstrate the next generation’s innovation when it comes to responsible design practices.

“As an activist and UN Ambassador, she wanted a zero-waste dress,” explains von Furstenberg. “Talented Parsons graduates went through scraps in our sample room and so it evolved into the ScrapWrap!”

The designer plans to launch an entire line of ScrapWraps in the near future.

The dress will be part of an upcoming 2020 calendar created by Cerny and shot by Ryan Hattaway of VRTU Studios to raise funds and awareness for environmental issues with a portion of proceeds donated to conservation groups.

Cerny, who has eaten a fully plant-based diet for nine years, constantly urges her 30 million Instagram followers to seek out quick and easy solutions in daily life, like eliminating single-use plastics and restoring quality pieces that already exist in people’s wardrobe.

“Climate Change and conservation are such massive issues that they can seem daunting, but there are small steps we can all take to help protect the planet,” says the social media influencer.

“When it comes to fashion buying less, buying quality, shopping vintage, and re-wearing what you already have are great places to start!”

Additional reporting by Heather Hauswirth