Discover the ultimate long-lasting wear with Yves Saint Laurent's Waterproof Eyeliner. Designed for precision and intensity, this eyeliner glides on smoothly to define your eyes with a rich, waterproof color that stays put all day. Its formula ensures smudge-proof and fade-resistant results, making it perfect for any occasion. Achieve a flawless look that endures through heat, humidity, and long hours. The ergonomic design allows for comfortable application, giving you expert control for sharp lines or a smoky effect.