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 Leather Insoles:
Leather insoles are insoles made of leather. Leather Insoles are foot-shaped pieces of material that are inserted in footwear to give extra comfort and support to the foot. Leather Insoles may also function to assist in the proper fitting of shoes.
About Sandals:
Sandals are footwear made of a sole that is held to the foot utilizing straps or thongs. Sandals are characterized by exposing the foot.