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 T Strap Sandals:
T-Strap Sandals are Sandals characterized by a "T" formation by the straps on the top of the Sandals. T-Strap Sandals include a strap which crosses the top of the toes horizontally, while another strap cuts through the middle of the foot vertically.