FitFlop Women's Walkstar 3 Sandal 100% Leather-and-synthetic Rubber sole Heel measures approximately 1 1/2" Platform measures approximately 1" Our patent-pending, original MICROWOBBLEBOARD(TM) midsole technology fuses three diagonal sections of triple-density EVA into a single, seamless, underfoot platform to absorb shock, diffuse high-pressure spots, and make your feet feel amazing!