The Castera is a comfy everyday bootie made with soft leather combinations, zipper accent, lace up closure and quilted details. Naot Castera features Naot's anatomic cork & latex footbed is wrapped in a pampering suede and molds to the shape of the foot with wear. American Podiatric Medical Association (APMA) Accepted for promoting good foot health. Castera fits our Utopia Footbed.