As a swim coach I developed heal and arch problems with conventional flip flops or deck shoes spending endless hours on hard unforgiving and wet pool decks. I was introduced to these sandals at an athletic shoe store exclusively handling running shoes. I was seeking running shoes that would address my foot issues and tolerate being constantly soaked with water.
These Spenco Yumi sandals were recommended as a great alternative to a conventional deck or tennis shoe. I found the Spenco sandal to be absolutely outstanding totally relieving my arch issues and their special metatarsal design supported my arch bones thereby resolving my heal problems by allowing my heal bone structure to remain aligned. In addition, they have reasonable cushioning plus maintained outstanding traction on wet pool decks. I later learned that this sandal is carried in a number of orthopedic doctor offices. A bit pricey, but a long wearing excellent value.