Leather Rubber sole Leather or Printed Leather or Man-Made. EVA Footbed. Durable Rubber Outsole. Adjustable buckle strap. Received American Podiatric Medical Association Seal of Acceptance. YOUR NEW FAVORITE SANDALS: The beloved Rest Karina toe-post sandal features adjustable leather straps and a bold metal ring detailing the vamp. In two bold hues, it’s sure to be the cherry on top of any ensemble. WHERE TO WEAR THEM? EVERYWHERE AND EVERYDAY.. BY THE POOL. ON VACATION. AFTER AN EXERCISE CLASS. EVERYDAY SUPPORT: A podiatrist-designed footbed built into every pair of Vionic sandals, slippers, active shoes and flats promotes stability from the ground up. VIONIC SHOES: Vionic brings together style and science, combining innovative biomechanics with the most coveted trends.