I wore these shoes maybe five times tops. They are just a half size too big and that's why I'm selling them. They are comfortable and pretty. Here's some info: Upper: 100% calf hair. Lining: 100% leather. Sole: 79% rubber (31% of which is recycled, 25% of which is synthetic, 23% of which is natural), 21% calcium carbonate. Do Well: leather sourced from a tannery that was certified by the Leather Working Group (LWG), an organization that works to promote sustainable environmental practices in the leather industry. Imported.