FitFlop Women&#39;s Snugger, Bronze,FitFlop,Snugger,8350127013100" /> 100% Synthetic Rubber sole Shaft measures approximately 9 1/2" from arch Heel measures approximately 1 1/2" Platform measures approximately 3/4" Boot opening measures approximately 12" around 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!