Matisse Bianca Mule in Black. - size 10 (also in ) Matisse Bianca Mule in Black. - size 10 (also in ) Embroidered suede upper with man made sole. Slip-on styling. Heel measures approx 1 H. MATS-WZ217. BIANCA. Launched in 2001, Matisse footwear focuses on producing trend setting fashion footwear held to the highest standard with meticulous craftsmanship.