Vionic Orthaheel Tech Women's Tide Flip Flop Sandals,Black,12 M Polyurethane Rubber sole EVA orthotic midsole align your feet and ankles to a natural position for better posture. Long-wearing rubber outsole provides superior added grip for a steady stride. Padded comfort straps promote a secure and comfortable fit. Mesh upper with patent trim, padded neoprene upper lining, EVA sockliner and insole... Rubber outsole. Care: Wipe off with a damp cloth. Air dry.