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 Wedge Heels:
Wedge Heels are shoes with a wedge heel that runs under the foot, from the back of the shoe to the middle or front. Wedge Heels have a heel with a triangular, wedge shape that can range from low to high heels.