Bolt Threads and Stella McCartney introduce mushroom leather handbag

Mylo leather by Bolt Threads

Mylo leather by Bolt Threads

Material startup Bolt Threads has introduced Mylo, a new leather material made from mycelium, the roots of a mushroom. For this textile innovation the company is continuing its work with designer Stella McCartney, who is launching a new style of the iconic Falabella handbag made from the innovation.

Bolt Threads has developed the patented leather by creating optimal growing conditions for mycelium cells to self-assemble into an animal leather-like material, meaning it can be produced in days rather than years.

The textile was developed in collaboration with Ecovative, a New York-based startup that had initially created the mushroom technology for packaging. It is not only sustainable from a raw material point of view, but can also be dyed with tea, which has long been a natural dyeing agent.

It’s the right time to show the world that we are more than just spider silk, Dan Widmaier, Bolt Threads’ co-founder and CEO, told us. Widmaier, who has a PhD in chemistry and chemical biology, is constantly developing things with his team in the company’s lab at a small scale, and leather and silk are just the beginning.

He refers to Bolt Threads as becoming a “platform” that can launch an infinite number of new materials inspired by the endless opportunities in nature.”There’s a huge ability to have an impact here,” he says, with relation to the change such new materials can make on sustainability and the environment. His tagline is “better materials for a better world”, which he refers to as critical for the globe’s growing population and increasing middle class.

The Stella McCartney Falabella bag made from Mylo leather by Bolt Threads

The Stella McCartney Falabella bag made from Mylo leather by Bolt Threads

The Stella McCartney handbag made from Mylo will be on display in London’s Victoria & Albert Museum’s “Fashioned from Nature” exhibit from April 21.  McCartney has no plans of putting the handbag on sale as yet, though her excitement towards investigating sustainable technologies is strong: “Once you take that technology and innovation and you marry it with luxury fashion and design and creativity, there’s no end to what magical madness you can create,” she told Forbes.

Bolt Threads’ own version of a Mylo leather handbag will be available for preorder in June.

This is Bolt Threads’ second material launch, having introduced Microsilk, a manmade spider silk produced in a lab in 2017. To showcase the material’s potential, the composition of which is meant to be stronger than steel but softer than a cloud, the startup launched a necktie and a hat. It followed that by introducing its partnership with McCartney via a dress made from the material that showcased the same level of fluidity and drapery as original silk. This was part of an exhibition at the MoMa in New York in October last year.

Want to know more? At this year’s SXSW, our chief intelligence officer Rachel Arthur spoke to CEO Widmaier on how his company’s innovations are driving the future of sustainable fashion for our TheCurrent Innovators podcast.