The Willa Mule features:

• Upper: Leather, suede or raffia.
• Footbed Lining: PU Covered EVA.
• Outsole: Durable Rubber.
• Heel Height: 0.62".
• 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).*