Orthaheel Women's Jenna Thong Sandal Polyurethane Triple strap PU uppers layered PU butterfly with laser perf details and metal trim accent; PU liner with a soft nylon webbing toepost. Invented by leading Australian Podiatrist (Phillip Vasyli) the sandal features Othaheels built-in & lightweight EVA biomechanical orthotic footbed that supports your feet and helps realign the lower legs; improving posture & balance. Durable rubber medium profile outsole with wave-patterened tread helps improve traction on uneven surfaces. Available in Fuchsia White Blue Camel and Black Width: B-Medium