Flat ballerinaUpper: nappa goatskinInner sole: sheepskinMain lining: sheepskinSole: cowhideFit true to size, European sizing- Buckle fasteningTo make this product, Chloé worked with Leather Working Group (LWG) certified leather manufacturers. LWG certifies tanneries based on their water and energy usage, management of chemicals, solid waste, and wastewater.