Mylo

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FAQ

  • Mylo™ material is an undeniably leather-like material made from mycelium, the root-like structure of mushrooms, created by the scientists and engineers at Bolt Threads, a material solutions company based in California.

  • Mycelium is the vegetive part of fungi. It is a network of tiny thread-like filaments, called hyphae, which exist underground and can produce mushrooms when they reach the surface. In nature, mycelium plays a critical role in breaking down organic matter to provide nutrients for the greater ecosystem.

    To make Mylo™ material, the expert scientists and engineers at Bolt Threads have designed a way to grow and transform mycelium into a material that looks and feels like leather.

  • To make Mylo™ material, the scientists at Bolt Threads begin by reproducing what happens under the forest floor inside a vertical farming facility. Fungal cells are mixed with sawdust and organic material until they spawn densely interconnected mycelial networks that rise from the substrate like mats of soft foam.

    Once mature, the mycelium is harvested and the remaining substrate is composted. Guided by the principles of Green Chemistry, we then process, dye and transform the mycelium into soft, supple, sheets of  biomaterial ready for surface texture and finishing.

    For a closer look at the process, visit our Material page.

  • Yes. Mylo™ material is verified vegan by Eurofins Chem-MAP  in an independent third party certification process supported by DNA testing. This extensive verification process ensures the absence of animal-derived materials throughout the entire manufacturing process.

    To learn more about the benefits of Mylo being 100% animal-free, visit our Impact page.

  • Products made from Mylo™ material are available directly from our growing network of brand partners. Product availability, release dates, distribution, and points of sale are controlled by partners individually.

    Sign up to our mailing list to receive the Mylo Newsletter and get updates on upcoming product launches.

  • Always refer to the care instructions that came with your product. Products made from Mylo™ material can be cleaned with a soft, damp cloth and left to air dry. If your product came with a productive dust bag, we recommend storing your product inside when not in use.

    Ready to retire a pair of socks or t-shirt? Use them to stuff inside your Mylo bag or shoes to help retain shape while in storage.

  • Always refer to the original care instructions for more details on how to care for your products made with Mylo material.

    If properly cared for and stored, products made from Mylo material should last a long time. Our longevity tips and recommendations include storing your products in their original packaging (ie: dust bag or box if provided) and stuffing them with crushed paper, retired cloth garments like socks or t-shirts to retain their shape.

  • Like any new technology, Mylo™ material requires an initial investment to create, produce, and make products from, which means the first pieces to market will cost more and often sell out quickly.

    The good news? Early demand for products made from Mylo™ material will help future costs come down. It’s very important to us to achieve accessible pricing so that more consumers can choose this highly desirable, sustainable alternative and thus have a wider environmental impact.

  • Mylo™ material was launched in partnership with a group of well-established brands that helped subsidize the massive costs that come with developing a revolutionary new material. As we continue to scale production to meet demand, accessibility is 100% our goal and we have added more brands to our network of partners.

    The good news? The early awareness and demand created by our partnerships with established brands is helping us to increase supply and reduce cost so we can get Mylo in the hands of smaller brands and designers.

    To get updates on new product drops and material availability, subscribe to the Mylo Newsletter.

  • Yes. We have partnered with world experts in tanning and dyeing who have been recognized with global sustainability certifications to help build a process designed for human health and safety and low environmental impact.


    The processing and finishing chemistries for Mylo™ material are intentionally evaluated and selected using Green Chemistry principles. Mylo material is free of substances of concern such as chromium and DMFa, two of the noxious chemicals used in animal and synthetic leather respectively. We've taken the additional step of gaining OEKO-TEX® STANDARD 100 certification for Mylo, demonstrating the rigor of our assessment process.

  • Absolutely. Our preliminary impact assessments indicate incredible environmental benefits of using Mylo™ material over animal leather.

    We look forward to sharing more about Mylo's life cycle assessments as we scale production and continue to pursue accurate measurements for comparison of Mylo™ material's environmental impact against traditional leather.

  • Great question. As of right now, we don't yet have all of the necessary data available to accurately calculate Mylo's carbon footprint at commercial scale. We regularly conduct life cycle assessments (LCA) of Mylo and use this data to build and optimize our large-scale production process for minimal environmental impact.

    We look forward to sharing more information on Mylo’s carbon footprint as we complete our scaling of production. Subscribe to our Newsletter for updates.


  • Mylo™ material’s composition is predominantly mycelium and currently contains some lyocell and a water-based polyurethane finish for added strength and durability to ensure Mylo products will have a long and useful life. All inputs for Mylo are selected on rigorously applied principles of Green Chemistry and minimal environmental impact compared to animal and fully synthetic leather production.

    For context, animal leathers are also finished with added chemistry — up to 40% of the weight of leather attributed to fat liquors, plasticizers, and coatings. Synthetic leathers are typically made from synthetic fabrics and polyurethane or PVC coatings, making them 100% plastic.

  • No. There are no genetically engineered microbes used to manufacture Mylo material.

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