Tony Bianco Karvan Heel in Nude. - size 9 (also in 10) Tony Bianco Karvan Heel in Nude. - size 9 (also in 10) Leather upper with man made sole. Ankle strap with buckle closure. Heel measures approx 4 H. TONR-WZ100. KARVAN. 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.