Visitors who stepped into fashion retailer H&M’s showroom in New York City on April 4, 2016, were confronted by a pile of cast-off clothing reaching to the ceiling. A T.S. Eliot quote stenciled on the wall (“In my end is my beginning”) gave the showroom the air of an art gallery or museum. In the next room, reporters and fashion bloggers sipped wine while studying the half-dozen mannequins wearing bespoke creations pieced together from old jeans, patches of jackets and cut-up blouses.

This cocktail party was to celebrate the launch of H&M’s most recent Conscious Collection. The actress Olivia Wilde, spokeswoman and model for H&M’s forays into sustainable fashion, was there wearing a new dress from the line. But the fast-fashion giant, which has almost 4,000 stores worldwide and earned over $25 billion in sales in 2015, wanted participants to also take notice of its latest initiative: getting customers to recycle their clothes. Or, rather, convincing them to bring in their old clothes (from any brand) and put them in bins in H&M’s stores worldwide. “H&M will recycle them and create new textile fibre, and in return you get vouchers to use at H&M. Everybody wins!” H&M said on its blog.

It’s a nice sentiment, but it’s a gross oversimplification.