NON REMOVABLE FOOTBED. The Mephisto Heidi is a casual summer sandal that can also be used for strolling around on a pleasant afternoon. The cork footbed naturally contours to the unique build of your foot. This allows the sandal to provide a custom fit, no matter your foot's shape or size. The footbed also includes a heel cup for keeping your foot in place. A flexible rubber outsole is layered underneath the sandal's cork footbed. The outsole's textured design provides extra grip for unstable surfaces. The top of your foot is also kept comfortable with two soft leather straps. The buckled straps can easily be adjusted for a more accurate fit. The tan leather straps are uniquely textured for a slightly weathered look that makes the sandal a good fit for the beach or even the front porch. Features include: Leather uppers are made with the finest full-grain leathers for ultimate breathability and durability. Cork footbed for proper heel, arch, and foot support when walking. Rubber mid-sole forms to the foot for a customized fit.