Tony Bianco Sadie Slingback Heel in Ivory. - size 8 (also in 10, 5, 5.5, 6, 6.5, 7, 7.5, 8.5, 9, 9.5) Tony Bianco Sadie Slingback Heel in Ivory. - size 8 (also in 10, 5, 5.5, 6, 6.5, 7, 7.5, 8.5, 9, 9.5) Leather upper with manmade sole. Made in China. Sling-back styling with buckle closure. Leather footbed and lining. Silver-tone buckle detail at toe with micro studs. Pointed toe. Approx 83mm/ 3.25 inch heel. TONR-WZ723. SADIE. 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.