- Materials constituted of the “roots” of mushrooms mimic the texture and sturdiness of leather-based.
- Startups like MycoWorks, Hydefy and Ecovative have every raised 9 figures.
- Sustainability advocates are pushing mainstream attire giants to supply much more help for biodegradable choices.
Leather-based stays the go-to materials for high-end purses, couches and automotive interiors. Its petroleum imitation, “pleather,” serves mortals on a price range.
However fungus-focused biotech startups need the world to contemplate a 3rd possibility. They’re brewing supplies that mimic the texture and sturdiness of leather-based, with out the grim prices to nature from exploiting animals or fossil fuels. The important thing ingredient is mycelium, discovered within the thread-like “roots” of mushrooms.
Extra manufacturers are working with these youthful corporations to check the biomaterials and gauge shopper curiosity for purses, attire, sneakers and furnishings. These partnerships embrace Mycoworks with Hermès, Hydefy with Stella McCartney and Ecovative with Calvin Klein dad or mum PVH Corp.
The three startups share a number of issues in frequent. Every has raised 9 figures in funding and advertises a leather-like appear and feel for plastic-free, biodegradable merchandise getting ready to reaching industrial scale.
The mycelium “leather-based” market, which reached $12 million in 2024, will soar as much as $336 million by 2033, based on analysis by Market Intelligence.
“There’s loads of vitality on this house proper now,” stated Katrin Ley, managing director of Trend for Good, an Amsterdam nonprofit that seeks to speed up sustainable supplies. “We’re seeing continued curiosity in exploring various supplies — particularly amongst manufacturers trying to meet formidable sustainability targets. Some are deepening their R&D efforts; others are partnering instantly with innovators to co-develop merchandise.”

Mushrooms in motion
Mycelium corporations insist their creations are maturing previous the “gee-whiz” part and readying to scale. Trade specialists cite MycoWorks of Emeryville, California, as essentially the most superior participant. With roughly 250 staff, it has attracted greater than $187 million in capital. MycoWorks’ 136,000 sq. foot plant in Union, South Carolina, makes use of synthetic intelligence and robotics to automate most manufacturing. The manufacturing facility is in a forested area near sources of sawdust, a fundamental enter. The corporate ships its materials for tanning to Igualada, Spain, which has a protracted heritage of tanning hides.
MycoWorks’ biomaterial, Reishi, lately debuted in a Ligne Roset sofa and on the internal door panels of an idea electrical Common Motors Cadillac. The corporate’s Advantageous Mycelium expertise was included in an Hermès journey bag in 2022.
Reishi meets or exceeds furnishings trade benchmarks for flexibility, abrasion resistance, colorfastness and growing older, based on MycoWorks. And for each 11 sq. ft of fabric made, solely 6 kilos of carbon dioxide or its equal are produced — far lower than is the case with animal and artificial leathers.
“MycoWorks has centered on refining the fabric’s distinctive properties reasonably than making an attempt to mimic leather-based,” stated Fred Martel, the corporate’s senior vice chairman of gross sales and enterprise growth. “We’re constructing enduring relationships with companions able to scale with us—those that acknowledge that Reishi will not be another materials, however a brand new class altogether.”
Chicago startup Hydefy additionally promotes its biomaterial as being in a category of its personal. Its model, referred to as Fy, seems in a handbag that Stella McCartney will flaunt in its summer season runway present.
Hydefy can also be working with a number of different giant attire and footwear manufacturers.

The corporate’s work emerged from NASA-supported analysis that discovered fungi flourishing across the acidic geothermal sizzling springs of Yellowstone Nationwide Park. The fungi grows in three days in a plant within the former meatpacking district of Chicago, based on Hydefy.
“We set out on this mission as a result of we needed to provide shoppers choices,” stated Rachel Lee, head of enterprise at Hydefy. “In the end, we simply need shoppers to have alternate options to animal and artificial leathers to scale back reliance on petroleum.”
Hydefy has used liquid air fermentation expertise to multiply its fungi. Now, although, it’s transferring towards submerged fermentation, a course of just like brewing beer. The corporate dries and combines the mycelium with crop waste, equivalent to sugarcane husks, to create blocks of fabric. Subsequent, laminated vinyl flooring machines, custom-made by the corporate, churn out sheets of Fy. Hydefy’s use of frequent polymer trade tools in an unusual means presents a scalability benefit, based on Lee.
Hydefy claims to satisfy manufacturers’ leather-based efficiency expectations. In any occasion, some massive names are shopping for what the corporate is promoting. “I’m continuously exploring plant and fungi-based, regenerative alternate options that don’t hurt animals and heal Mom Earth,” Stella McCartney stated in a March 31 press assertion. “Harmonious to this philosophy, the innovators behind Hydefy are creating supplies with contemporary pondering and a give attention to sustainability.”
This may occasionally sound acquainted to longtime observers of next-gen supplies. Again in 2016, one other Stella McCartney bag featured Mylo, a mycelium materials cultivated by startup Bolt Threads. Nevertheless, even after elevating greater than $300 million, the corporate paused its fungus-fashion efforts in 2023, citing excessive prices.
Easy methods to scale?
Preliminary excessive overhead, infrastructure limitations and provide chain immaturity all contribute to the cruel realities of scaling new supplies. That’s why the innovators working with Trend for Good are taking a long-term, strategic method, based on Ley. “By working along with manufacturers, suppliers and buyers, they’re collectively mitigating monetary dangers and constructing the infrastructure essential to scale sustainably, ensuring that the supplies are literally market prepared and might meet the trade’s high quality requirements.”
For the second, although, mycelium supplies finest swimsuit high-end merchandise reasonably than mass market items, based on Tiffany Hua, an analyst at Lux Analysis in Boston.
The biotech builders rely closely on co-development partnerships with manufacturers to beat the energy, flex resistance and sturdiness shortcomings of the brand new supplies, Hua added. As well as, the fermentation course of is resource-intensive and finicky. “Even with efforts to automate and combine robotics, as MycoWorks is making an attempt, growth timelines stay sluggish and costly,” she stated.
One other mycelium participant, Ecovative, introduced March 27 that it was receiving $11 million in funding. The Inexperienced Island, New York, enterprise has raised a complete of $120 million. Final yr it accomplished a three-year collaboration with Trend for Good, exploring how its Forager materials may operate in merchandise created by Bestseller, PVH Corp. and others.

“That pilot helped us higher perceive the sensible challenges of scaling mycelium leather-based,” Ley stated. “It gave the innovators suggestions from actual model use instances — how the fabric performs, the way it matches into current processes and the place the friction factors are.”
That stated, sustainability specialists argue that the attire institution must do extra to supply stability and development to biomaterials innovators.
Cynthia Energy, a trend circularity knowledgeable and proprietor of Molte Volte Consulting in New York, says that manufacturers and retailers ought to ink long-term investments with startups. “It’s not often useful to a fabric innovator to get a model to make use of their materials for one season after which drop off,” she defined. “If something, that may be damaging to their smaller and extra fragile firm ecosystem.”
Energy added that trend companies also needs to establish the biggest environmental and social “offenders” amongst their supplies, then help the startups formulating less-harmful alternate options. “Most of those startups are ready for his or her cellphone to ring with a giant order or massive title model to signal an off-take settlement,” she stated.