Bolt Threads

Location

Berkely, California

Focus

Sustainable materials (Spider silk, leather)

Founders

Dan Widmaier, David Breslauer,
and Ethan Mirsk

Bolt Threads is a clothing company that uses cellular agriculture to make animal-free spider silk. Bolt Threads was founded by Dan Widmaier, David Breslauer, and Ethan Mirsk in 2009, and they use yeast cells to produce real spider silk via fermentation. Bolt Threads has already released several products in the market, including a spider silk tie and a silk toque. In 2018, Bolt Threads announced its latest product line in 2018: Mylo. Unlike their other products, Mylo is not made from spider silk. It’s leather, made from mushrooms.

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