Vionic Women's Sandals Elvia Adjustable Thong Shoes Black 8 8.5 US Vionic Thong Sandal Adjustable Style: Elvia Color: Black Approximately 1.5"H heel Fit: true to size; recommended 20 to 30 minutes of break-in time for the first few days of wear Polyurethane upper; textile/man-made lining; man-made balance Good condition, Store return Size: 8 US / 39 Eur Size: 8.5 US / 40 Eur T-strap upper with elongated triangular vamp, two adjustable hook-and-loop straps, soft fabric toe post Durable TPR outsole with textured tread offers good traction on a variety of surfaces Podiatrist-designed, microfiber-wrapped EVA orthotic footbed with Orthaheel® technology and a deep heel cup helps stabilize and support your foot's natural alignment while wearing Three-zone comfort with ultimate arch support Helps to relieve common causes of heel pain and knee pain, related to over-pronation and flat feet An ideal complementary option for orthotic or arch support wearers, particularly at home on hard flat floors APMA Seal of Acceptance Bottom construction: Rest