Steven Viienna Heel in Slate. - size 10 (also in ) Steven Viienna Heel in Slate. - size 10 (also in ) Velvet textile upper with leather sole. Ankle strap with buckle closure. Heel measures approx 3 H. STBY-WZ251. VIIENNA. One of the biggest names in the footwear industry, Steve Madden has been bringing sophisticated and chic styles to women for years. His diffusion line Steven by Steve Madden features trendy styles at affordable prices that everyone can enjoy.