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 Penny Loafers:
Penny Loafers are a style of Loafers which features an additional strap on the upper portion of the shoe above the toes. This design is referred to as Penny Loafers because traditionally a penny was placed in a slit on the strap to bring the wearer good luck.