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 Memory Foam:
Memory Foam is a type of high density synthetic material designed to provide support and protection.
Memory Foam conforms to the pressure of weight or heat and has the property to return to its original shape after the pressure is released.
About Sneakers:
Sneakers are sports shoes having soft rubber soles designed for use during physical activities. Sneakers are often made of leather, canvas, or nylon.