From Native Shoes, the Women's Miles Wanderfoam Slip On Sneakers feature: Wanderfoam™ upper: a flexible, velvety-soft foam infused with sugarcane-based Sugarlite™ Thoughtfully engineered to be more flexible in order to adapt to a wide range of foot shapes and sizes Water-friendly design with allover perforations Slip on design Unlined EVA outsole Flat heel Imported.