Free Shipping! Experience the comfort of the Naot Nautilus from Naot's Shell Collection, all new for Fall 2013! The Shell Collection features Naot's removable, anatomic cork & latex footbed which is covered in suede and molds to the shape of the foot with wear. The Naot Nautilus features a zipper closure and gore for easy on-and-off as well as a lightweight polyurethane bottom for flexibility, durability and excellent shock absorption. Medium to wide width.