This style is called “Armadillo” and is from the Christian Louboutin 2009 collection.
Kate was already spotted in the same Louboutins in 2009.
Kate’s heels feature black upper, ruched detail on vamp and quarter, hidden platform sole, D’Orsay style, peep toe, 4 7/10″ covered heel with pleated detail, and the signature red sole. The shoes were available for $865.00.
Other celebs wearing “Armadillo” styles include Rachel McAdams, Miley Cyrus, and Emma Stone.

For more Carlos Santana shoes refer to Shoebunny’s ever-growing Carlos Santana collection.
Where to buy:
Zappos: Carlos Santana Shoes