Yeah I’ve had it with Will’s Vegan Shoes. They use www.viridis-leather.it/faq.html and say it’s “bio-based leather” but if you go to the link:

Is it recycled, recyclable or biodegradable?

No, it’s not but it expresses its sustainable content because it’s mainly produced using by-products from corn and wheat instead of petrolium based products. Bio polyols always available as renewable resources.