From website: High-quality metallic or matte finish full-grain leather straps with antiqued metal hook logo Comfortable hand-sewn leather toe post bonded seamlessly to a soft microfiber lining Laser-etched anatomical poured PU footbed with micro-texture for traction and a lower profile for a modern and clean look and feel Non-marking rubber outsole with ocean current inspired traction pod design for enhanced grip and durability Brand : OluKai