Vionic Amber Adjustable Sandal 8.5 Four points of adjustability on this backstrap sandal deliver completely customizable comfort. Two square enamel trim beads add interest to the top of the vamp. Manmade or natural cork uppers with microfiber-covered footbed. Lightweight, flexible EVA midsole absorbs shock, reducing stress on feet, ankles, and knees. Durable rubber outsole with a patterned tread provides traction on a variety of surfaces. 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) Preowned condition