Brand New In The Box ,Full Size: 0.33 oz. A waterproof, high-volume mascara that delivers bold lash volume for up to 24 hours. This waterproof mascara doesn’t require touch-ups and doesn’t flake. Everything you love about Monsieur Big—now in a waterproof formula. The Monsieur Big Mascara features a large brush and a sweat-proof, smudge proof formula that glides onto lashes like silk and delivers exceptional volume for up to 24 hours of wear.