The Dart is super cushioned, lightweight and sleek, with innovative features and a lightweight mesh bootie construction. Oil- and slip-resistant rubber outsole. High cushioned molded EVA midsole for all-day comfort. Removable shock absorbing latex-free polyurethane insole with arch support and heel cupping for all day comfort. Lightweight mesh upper that enhances breathability, with a bootie construction that conforms to the foot for a more custom fit.