Dior Diorshow Iconic Overcurl Waterproof. Spectacular volume & curl professional mascara. Dior brings you the latest chapter in the Diorshow mascara adventure inspired by the big-screen eyes of movie star icons, in a waterproof version. Its secrets? An incurved brush, modelled after professional eyelash curlers, that delivers extreme curl and a stretch - effect formula for spectacularly shaped lashes.