These look nice and are good in theory, but the edges of the foot bed stick up.  So as my heel was slightly wider than the foot bed on the heel of the sandal, that meant that the edges were digging into my heels (and I wear a 10AA, so normally my heel is more narrow than the shoe on even narrow shoes).  So I guess if my foot perfectly matched the heel bed, that it would cup my foot, but I question how often that would happen with a thong, where your heel lifts up with every step and isn't necessarily going to be perfectly aligned ever time it comes back down.  The foot bed (besides the edge) did feel very padded and nice and the straps hit at a comfortable spot, but because of the edge issue I returned these thongs right away.  Also, this color looks more like a faded red than like a coral.