Vionic's lightest outsole yet. With cutouts for optimal flex, this breathable, sock-fit-collar shoe is made for performance walking. Tested by Heeluxe: The footwear industry gold standard, Heeluxe uses patented technology to analyze comfort and performance against competitive styles, in conditions that duplicate real-world wear. Uppers: Synthetic knit. Footbed Lining: Removable Mesh-Covered EVA. Outsole: Durable Rubber. Heel Height: 2.0". Platform Height: 1.25". Vionic active footwear features Advanced Motion System (AMS) technology, combining our podiatrist-designed orthotic with a flexible, cushioned outsole and a lightweight, breathable upper. Step into support for work, play and everyday. Received APMA Seal of Acceptance. Women's Captivate Sneaker