Product details • flat heel • fastening: lace-up • round toefabric content and care advice • uppers: 100% leather • lining: 100% leather • cushioning: 100% eva • sole: 100% rubber • leather from environmentally-certified tanneries. Leather working group (lwg) certification is an internationally recognised certification which assesses the environmental performance of tanneries (covering energy and water consumption, waste water, air emissions etc.).