Ecco Irving Perf men's slip-on shoes in Khaki feature a nubuck leather upper and a soft textile lining for everyday comfort. With removable insoles and a cushioned footbed, these stylish shoes are perfect for casual outings and effortless wear. Direct-injected, one-component PU outsole; lightweight outsole with high flexibility. Full-grain and Yak nubuck leather uppers; materials are naturally soft, light and highly breathable. Textile lining offers softness and breathability. Removable textile-covered inlay sole with ECFS for increased air circulation.