Josef Seibel Tonga 51 Black Leather Sandals Built around the popular Tonga sole, Tonga 51 is a classic mule-style sandal in a beautiful black leather with a vintage grain look. Single wide strap that envelopes the foot. A small, triangular section of elastic is hidden under the upper construction allowing for flexibility of movement. Tonga 51’s upper has a smooth, breathable leather lining which is combined with a soft, spongy, textile-lined foot bed. This forms the surface of Tonga’s anatomically designed 3.5cm cork and TPR sole unit which curves up at the toe to facilitate the natural forward rolling motion of your feet when you walk and offers additional inner arch support. * Upper: Leather * Lining: Leather * Insole: Suede * Sole: Cork & rubber * Heel: 1 3/8” height Worn once & in Great condition!