Get the style that you love and the comfort you deserve in the FitFlop Bumble Crystal Backstrap Sandals in Black. The Bumble sandals by FitFlop are a thong style sandal with and adjustable heel strap and feature an elegant cut out design that resembles a butterfly and covers the top of the foot, coated in beautiful crystal studs. In addition to style, FitFlop sandals are engineered with three beneficial parts to enhance comfort. Microwobbleboard midsoles help to alleviate joint pressure and stress on the back, knees, ankles, and feet while increasing muscle activation in the buttocks, thighs and calf's, built in arch contour further helps to minimize pain in the feet, and durable rubber outsoles provide traction and slip resistance.