Brands including Stella McCartney, Balenciaga and Hermès are making products from mushroom-based material. BoF’s chief sustainability correspondent Sarah Kent details the forces pushing next-gen fabrics like mycelium leather forward — and whether the much-hyped sustainability solution has a future in fashion.Background: After years of experimentation and development, handbags, shoes and coats made of mycelium leather — created from the roots of mushrooms — are hitting the shelves from names like Stella McCartney, Balenciaga and Hermès. It’s a test of whether mycelium leather will make it in the mainstream. Made by start-ups like Bolt Threads and MycoWorks, mycelium is promising for fashion as brands seek out non-plastic, non-animal-based, less-energy-intensive leather alternatives and consumers demand more environmentally friendly products. But taking an idea from the lab to the store floor involves a lot of trial and error.  Key Insights: Though the space is gaining momentum as brands bring products to market and start-ups attract investment, most items are still limited-edition or very expensive. To gain mainstream traction, companies need to scale up and prices need to go down. Much depends on how brands’ first experiments perform.  If all goes well, the market for alternative materials could be worth $2.2 billion by 2026. Additional Resources:  Fashion’s Race for New Materials — Download the Case Study: Brands are pursuing a raft of initiatives to adopt recycled textiles, regeneratively farmed cotton and mushroom-based leather, but giving fashion’s major materials a sustainability makeover still requires billions of dollars worth of investments and deeper, longer-term commitments to scale.  Luxury’s Latest Battleground: Material Science: Armed with extensive patent portfolios, Bolt Threads, Modern Meadow, MycoWorks, Natural Fiber Welding and others are targeting luxury brands with alternative materials.Join BoF Professional today with our exclusive podcast listener discount of 25% off an annual membership, follow the link here and enter the coupon code ‘debrief’ at checkout.  Want more from The Business of Fashion? Subscribe to our daily newsletter here. Follow The Debrief wherever you listen to podcasts.  Hosted on Acast. See acast.com/privacy for more information.