this material isn't leather but its makers bolt threads say that it's just as durable and breathable. this is a another different material from california's mycoworks — it certainly has the right sheen and movement but a quick sniff does give the game away. this does have a bit of a distinctive odour of its own. we received a range of responses, from absolutely like leather, cannot tell the difference, to people who can sense that it is a natural material but its own unique natural material with its own qualities. it's not actually the mushrooms themselves that go into these fungi materials, it is mycelium, the fine threads that usually grow underground. processing mycelium into a material doesn'tjust require less water and fewer chemicals than leather, the source itself brings unique environmental benefits too. you're actually taking carbon