Vionic Flex Sierra
DescriptionAdd some pep to your step with this unprecedented blend of style and technical features. The Sierra showcases an engineered knit upper for added breathability and a dual-density outsole with rubber elements for great traction underfoot.
- Knit and man made uppers
- Firm yet flexible, removable textile-covered EVA orthotic insert.
- Durable rubber outsole.
- 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