I recently bought my first pair of Rocket Dogs flip flops, in solid black, and liked them so much, bought similar ones in different colors!  The footbed is solid rubber-like material which gives excellent support but is soft and comfortable to walk on.  The surface is matte, not shiny, and does not get slippery when wet.  There is a very slight rise around the edge and arch so it cups your foot comfortably, but it is not pronounced enough to notice without close inspection.  (I only could tell when I was examining the shoe to figure out how a "flat" flip flop could give such a secure feeling.) The shoe is a tiny bit wider in the heel than many sandals, and is thick enough to keep your foot protected above hot sand or water if walking on damp ground. The fit is true to size and the straps are comfortable, yet strong.  You do not have to break them in; they feel great from the first time you put them on.  With such a reasonable price, and the great service from Amazon, you owe it to your feet to try them!