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 Lightweight:
Lightweight refers to articles such as footwear, apparel, and accessories that are not heavy. Articles that are lightweight are easily portable and do not wear heavily upon the body.
About Orthopedic Shoes:
Orthopedic Shoes are shoes designed for people with problem-prone feet. Orthopedic shoes should have a firm heel, a heel that is not too high, a wide toe box, and a rigid shank (inner construction material) for stability. Orthopedic Shoes may also be referred to as Pedorthic Shoes.