Give your legs a workout while you walk and let your style shine with the FitFlop Women's Electra Thong Sandal! Tone and strengthen legs and burn more calories as you go about your daily routine in this fun, sequin-covered FitFlop thong sandal! Developed by biomechanists at London South Bank University, FitFlop has been scientifically proven in independent studies to boost overall leg and calf muscle activity as you walk. The magic is in the varying densities of the EVA foam in the midsole. The foam ranges from soft to firm, creating a Microwobbleboard effect, causing legs to work harder. Plus, the FitFlop can help reduce strain on your feet, knees and back. Add sparkle to any outfit--the sequin-covered leather upper offers a striking look.