“Reshi” is the flagship product of Mycowoks, a California-based startup that produces biomaterials from mycelium. According to Mycoworks, Reshi Fine Mycelium is the next evolution in mycelium, a premium, natural option for leather with inherent strength and durability. “Unlike mushroom leather (compressed mycelium) or traditional leather, Reishi is custom-grown to finely tune for fullness and the highest performance standards. Fine Mycelium is a breakthrough in materials science and biotechnology, and a platform for new design possibilities.”