Wolky Women 401 Tsunami Flats Sandals Leather Genuine leather upper and leather-covered footbed put top-quality, durable materials under every step Contoured memory foam throughout entire footbed (arch support too) comfortably cushions each stride Full leather lining provides a smooth feel and lasting durability Lightweight polyurethane outsole offers durability and flex while also absorbing shock Hook-and-loop closures on the back strap, instep strap and toe strap give you total control over fit