A flip-flop design that's built to last, the Chaco Leather Flip thong won't blowout after a few months use. The sturdy leather top sole and leather toe strap conforms to your foot for what is expected to be many years of use. In fact, the Chaco Leather Flip thong's Vibram outsole can be resoled, but wearing them out is no easy task. In addition to their durability, the Chaco Leather Flip thong offers underfoot support usually reserved for more substantial footwear. The BioCentric polyurethane footbed not only stabilizes the heel and concentrates the fatty pads underneath the heel for enhanced natural cushioning but it also aligns the foot in the neutral position, the sweet spot for optimum biomechanics.