Wolky Women's Black Smooth Leather Nassau Leather Removable, leather-covered footbed offers a uniquely custom fit-a Wolky exclusive Memory foam and natural cork throughout entire footbed comfortably cushion each stride and control moisture Lightweight polyurethane outsole offers durability and flex while also absorbing shock Soft and durable full-grain leather upper is ultra comfy and looks chic from every angle Streamlined slide silhouette makes for comfortable everyday wear and easy on and off