The Rubino is the perfect heel that has a slightly padded heel cup for support; extra comfort. Naot's anatomic cork; memory foam footbed is wrapped in leather; microfiber and molds to the shape of the foot with wear. This collection uses a hand-sewn Strobel construction making it strong and extremely flexible. The Prima Bella Collection features a 2 3/4" polyurethane sole with a metal shank.