Smooth leather and nubuck, with side zippers give the Spello boot its balanced look, while a removable footbed provides all-day comfort to this shoe. 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. Our patented Naot Replacement Footbeds are also available for Spello.