Bertie Slingback Pump Metallic faux leather upper with rubber sole. Imported. Padded faux leather footbed. Faux leather lining. Triangular plaque detailing. Pointed toe with angular heel. Approx 75mm/ 3 inch heel. TONR-WZ639. BERTIE. Based out of Australia, the Tony Bianco brand embraces a mix of the contemporary, the classic, and the cool. Their signature can be seen in the use of high quality materials and a keen eye for detail that is used to create on-trend pieces that will survive the test of time.