Active Sandals are sandals characterized by features to support the wearer in low intensity activities. Active sandals will typically have ankle straps for support as well as buckles, straps, or other such features for functionality instead of aesthetics.
About Heel:
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).