Mycelium leather
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Composition by Mass
Price Benchmark
Price benchmark not verified for this entry; request a grade-specific quotation.
Suitable For
Premium small leather goods and limited runs where the material story is part of the product. Hand and drape are the closest of any alternative to fine leather.
Not Suitable For
Not for volume programmes. Not for anything requiring guaranteed multi-season supply continuity.
Known Limits & Failure Modes
Supply is the binding constraint, not performance. Bolt Threads paused Mylo — the best-known mycelium leather programme — in July 2023 after it could not raise the capital to reach commercial scale, which stranded the products designed around it, including the limited-run Stella McCartney bag launched a year earlier. The brand partners had not walked away; the funding ran out. Treat any mycelium input as a single-source dependency and ask about committed annual capacity and the supplier’s funding runway before you design it into a range.
Commonly Cited Certificates
AI-generated illustration. It does not show a specific supplied grade or test result.
OEKO-TEX STANDARD 100
A chemical safety certificate, not an environmental one — a virgin fossil-based PVC sheet can hold a valid one. Because certification is modular, check whether the certificate covers the finished article you are buying or only a yarn, trim or component of it.
AI-generated illustration. It does not show a specific supplied grade or test result.
PETA-Approved Vegan
Rests on a supplier declaration rather than an independent audit, and sets no requirement on chemistry, emissions, recycled or bio-based content — a virgin fossil-based PU sheet qualifies. Presenting it as a sustainability claim is a substantiation risk under the ECGT.