Product details • Sports shoe • Flat heel • Fastening: lace-up Fabric content and care advice • Uppers: 91% leather, 9% rubber • Lining: 100% textile • Cushioning: 100% textile • 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.)..