Teva - Kenetic Circuit (Aluminum) - Women's: Redesigned for 2005, the women's Kenetic Circuit is a technical walking sandal designed to provide comfort and support for the fitness minded performance walker. Waterproof leather with Dri-Tech lining. Instep support strap. Microfiber topsole. ALF anti-bacterial treatment. Encapsulated Shoc Pad. Medially posted EVA midsole. Power Train Active Shank provides stability and security for the foot. Durable Traction Rubber outsole.