A heel is the bottom, back part of a shoe or boot that provides elevation. The styling and construction of a heel may vary (i.e., stacked, stilletto, spiked, sculptured, kitten).
About High Heels:
High Heels are shoes that raise the heel of the wearer by at least 2 inches or higher. High Heels come in a wide variety of styles, shapes and designs.
About Nubuck:
This is a grain leather that has been slightly brushed on the surface to create a very fine velvet-like appearance. The texture of nubuck is finer than suede.