Vionic Elvis sandals. Vionic is the best most comfortable shoe. Here's details from the manufacturer on these sandals: Vionic Elvia - Women's Adjustable Slip-on Orthotic Sandal. Adjustable straps and orthotic arch support makes this a supportive and customizable sandal. Every pair of Vionic sandals helps promote healthy feet while reducing the symptoms of common foot conditions like overpronation and plantar fasciitis. Features & Benefits of the Women's Vionic Elvia Toe Post Sandal with Adjustable Straps Dual adjustable straps create a custom fit for stability and comfort. EVA midsole eliminates excess pressure felt throughout the body from walking and standing. Rubber bottoms have patterned tread to reduce chances of falling. Biomechanical orthotic footbed and deep heel cup allows foot to restructure to a vigorous position. Orthaheel Orthotic Support Technology helps reduce over-pronation, which can help relieve associated pains. Upper: Synthetic The built-in orthotic arch support is great for people who want to spend more time on their feet. The support helps to reduces foot-discomfort and foot-fatique. Has been given the American Podiatry Association Seal of Acceptance. Like new, but no tags (they were tried on but never worn).