According to Smithsonian Magazine, MycoWorks vegan leather is now in several products.
For information, see: https://www.smithsonianmag.com/smart-news/this-mushroom-based-leather-could-be-the-next-sustainable-fashion-material-180979170/ and
For other nonleather and animal-free alternatives, see: https://www.vrg.org/nutshell/leather.php