From the Madewell website: Coming in leather with a little added shine and texture, these loafers have a statement-making penny strap and stacked heel. And, cushiness alert: our MWL Cloudlift Lite padding feels like walking on a... well, you know. 1" heel. Leather upper. Leather lining. Man-made sole. 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.