Vionic Willa Loafer Slip on Flat Black Suede Orthotic Comfort Shoes Size 6.5 Excellent preowned condition with normal signs of light wear shown in photos. This flat-style loafer combines luxe materials with a seriously supportive, seamless silhouette for all-occasion wearability. Upper: Suede leather Footbed Lining: Removable PU Covered EVA. Outsole: Durable Rubber. Heel Height: 0.57". Vio-Motion Technology is 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). Received APMA Seal of Acceptance.