Used by the legendary world champ surfer, Mick Fanning, these are the ultimate athletic sandals. They feature a water-friendly nubuck upper, an injection-molded EVA footbed with arch support, and a church key bottle opener built into the footbed. . . . Synthetic nubuck upper. . EVA footbed. . Water-friendly. . Full 360 degree heel airbag. . Herringbone rubber outsole. . Built-in church key bottle opener. .