Here we have a fine example of the Soleless (though some might argue that it should be "Soulless") Doily Thong Sandal:
Obviously they're meant to be worn at the beach...
...Which I suppose is more responsible than suggesting that someone wear them to work...
...But think about it:
If you wear these to the beach, aren't you just asking for a bizarre tanline?
No, I'm sorry. I cannot condone their use, beachside or anywhere else.
(They don't look very comfortable, anyway.)