Mylo can grow in about two weeks, ... Now, she’s unveiling the industry’s first-ever Mylo garments: a jet-black bustier and utility pants. Photo: Courtesy of Stella McCartney ...

Less than two years later, production of Mylo has been paused indefinitely. The news that Bolt Threads was halting production may seem like a death knell for emerging sustainable materials.

Stella McCartney has introduced her first garments made of Mylo, the leather alternative grown from mushrooms. Mylo can grow in about two weeks, so its carbon footprint is exponentially smaller than ...