FitFlop Benefits - The FitFlop foot hugging upper strap keeps the sole of the foot in contact with the midsole. The firm toe area promotes faster push-off to maintain walking speed. The multidensity midsole requires up to 15% more energy to walk on. The dense EVA heel strike point absorbs 36% more shock than regular footwear. The non-slip outsole creates grip to maintain stability. The FitFlop MicroWobbleboard technology in the FitFlop midsole slows eversion rate of foot through step.