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 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.
About Surgeon Shoes:
Surgeon shoes are shoes worn by surgeons. Surgeon Shoes generally have slip resistant outsoles and are comfortable for long term wear. Surgeon Shoes may also be referred to as Doctor Shoes, Nurse Shoes or Nursing Shoes.