WORN ONCE Designed with a round toe and comfortable stacked heel. Whether dressed up or down, these versatile slip-ons will become your go-to for effortless sophistication. 1 3/4" heel. Upper: 100% leather. 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. NOTE- I normally wear a size 8, but these were a little too big for me, my heel kept pulling out of the shoe, so that's why they're only worn once, but if you tend to be a smaller 8, these might not be for you.