Tony Bianco Spencer Vintage Slingback Heel in Blue. Size 5, 5.5, 6. Denim upper with leather trim and manmade sole. Sling-back styling. Denim footbed with leather lining. Leather floral details at vamp. Pointed toe. Approx 83mm/ 3.25 inch heel. 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.