The Vionic Aviva is a sporty women's sneaker inspired slip-on shoe great for at the gym or around the house. Vionic Aviva Teal Fabric Mesh Women's Shoe Features include: Knit upper promotes breathability Perfect for pre and post-workout wear Features 1st Ray technology in the outsole and insole Uppers: Textile Firm yet flexible, removable textile-covered EVA orthotic insert Durable rubber outsole Vionic active footwear features Advanced Motion System technology, combining our podiatrist-designed orthotic with a flexible, cushioned outsole and a lightweight, breathable upper Recommended by Dr. Andrew Weil This style received APMA Seal of Acceptance!