We engineer every pair of Fit Flop shoes with our amazing, multi-density midsoles. Theyre ergonomic, cush, pressure-diffusing & totally wunderbar if youre gonna be on your feet a lot. on our standard Microwobbleboard midsole average fit APMA* Seal of Acceptance, for footwear found to promote good foot health supple, glossy, beach-friendly TPU rubber upper with adjustable, enamel-covered, metal buckle * American Podiatric Medical Association