Lightweight, flexible medium-density EVA midsole absorbs shock, reducing stress on feet, ankles and knees. Durable Rubber Outsole. Stroll off into the sunset with these dressed up thongs. With a simple but striking O-ring embellishment, Tide Aloe is made to hit the town. Vionic Technology is biomechanically designed to hug your arches and support your feet in comfort. Vionic sandals' built-in orthotic is shown to be effective in helping to treat heel pain (plantar fasciitis).