In reply to FranC:
only one I can think of off hand is Evolv which for at least some of their shoes use vegan materials (all of them? can't remember).
I've seen other discussions looking for more ethical down jackets, generally looking for British brands (so you know the workers are in good conditions), but nothing else is popping up in my memory at the moment, but here's a bump at least as I'm sure if some other peope see this they can advise better.