Product details • Sports shoe • Flat heel • Fastening: lace-up Fabric content and care advice • Uppers: 50% suede, 45% leather, 5% polyurethane • Lining: 75% polyester, 25% polyurethane • Cushioning: 100% polyester • 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.)..