Aetrex - Women Brianna Ballet Flat Slip-on ShoeA classic loafer that is both comfortable and polished. The Womens Brianna Ballet Flat is designed for comfort and support with arch support, a stretchy topline, and 5mm of memory foam cushioning. It features a soft nubuck and pebble grain leather upper, a lightweight rubber outsole, and a 1. 25 heel. The Aetrex Cobra Orthotic System provides added stability and relief from common foot pain.