INNOVATOR PROFILE

BOLT THREADS - MYLO

COMPANY INFORMATION

Founded: 2009

Headquarters: Emeryville, California

Website: https://boltthreads.com/

COMPANY HISTORY

Bolt Threads, originally named Refactored Materials, was founded in 2009 by Dan Widmaier, David Breslauer, and Ethan Mirsky to use biotechnological innovation to create materials. Dan Widmaier initially developed this idea during his Ph.D. in Chemical Biology. The company has since grown to a team of nearly 100 employees.

The company’s first material is their spider silk product Microsilk (Profile of Bolt Threads - Microsilk). They recently expanded into making alternative leather from mycelium. Bolt Threads and Ecovative, the creator of the Mylo IP, have been involved in a lawsuit over their license and assignment agreement since 2019.

MATERIAL

Mylo is a leather alternative made from mycelium.

TECHNOLOGY

Production process: Mycelium

Bolt Threads licensed technology from the New York-based company, Evocative, which originally used mycelium to create packaging as an alternative to styrofoam. Like other mycelium leathers, Bolt Threads grows the mycelium for Mylo on agricultural waste. By controlling temperature and humidity, they control the growth into a dense mat of interconnected cells. The mycelium mat is tanned and dyed without chromium and then imprinted with a pattern to create the final material.

SUSTAINABILITY

Mylo is likely more sustainable than animal leathers and petroleum-based alternatives in a number of measures. Mylo can be produced in a matter of days compared to years for animal leather. The process of making Mylo does not involve raising livestock, and likely uses less water and fewer chemicals than animal leathers and petroleum-based alternatives. The company intends to produce a lifecycle analysis of Mylo prior to large scale commercial rollout.

SENSORY/TACTILE

Bolt Threads states that Mylo has a soft, warm feel and is durable and abrasion-resistant.

CURRENT APPLICATIONS

ACCESSORIES

Bolt Threads collaborated with Stella McCartney to create a prototype of her iconic Falabella bag, made with Mylo.

Bolt Threads’ first commercially available bag made with Mylo was in collaboration with Chester Wallace and funded through a Kickstarter campaign in October 2018.

Images from Bolt Threads.

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