* RaaS: Offering resale-as-a-service for brands like Everlane and Madewell. They helps merchants monetize returns. As e-commerce grows, so will this channel.

Thanks to increased consumer consciousness around sustainability, the circular economy, and fair labor, resale has become fashion’s hottest sector—and brands want in. But scaling and making resale profitable isn’t easy, and with increasing competition in the space, it’s only going to get harder. 

Sustainable commerce will be one of the major trends of the coming decades, powering megatrends like overstock and secondhand.