Fun is written in the script for the KEEN Rio sandal, inspired by KEEN's line of technical sandals for grown-ups. The flexible, water-resistant synthetic upper of this girls' sandal features a silhouette designed to fit anatomically with growing feet; secure-fit bungee lacing lends a snug fit, while KEEN. PROTECT guards against stubbed toes. A textured, non-marking rubber outsole lends traction l.