Vivobarefoot Primus Sport IV Kids – Deep OceanLet them move the way nature intended in the Vivobarefoot Primus Sport IV Kids Deep Ocean. Lightweight, flexible and foot shaped, these barefoot trainers help growing feet stay strong and agile from the playground to the trails. Natural Movement for Active Kids The Primus Sport IV is built around Vivobarefoots foot shaped, zero drop design so kids can run, jump and climb with natural balance and stability. A super flexible sole lets their feet bend