Upstart clothing brand Everlane has a knack for upending—and resetting—fashion-industry norms. Can its effort to wean itself off virgin plastic help move an industry that’s drowning in carbon-intensive synthetics?

The Everlane Sustainability Committee gathers in San Francisco on a bright Thursday morning for its weekly meeting. Three dozen staffers take seats around a white conference table in the middle of the company’s open-plan headquarters. Dressed in a white T-shirt,...

Continue Reading Everlane’s founder vowed to remove all new plastic from the brand’s supply chain by 2021. Now he has to figure out how.