Waterproof eyeliners are perfect for a smudge-proof look from your office commute to your night parties. Choose from Maybelline, Lakme, Colorbar, and more.

Now, and for the last few years, there’s only one that I use day in, day out: Kiko Milano Definition Waterproof Eyeliner (£10.49). Why do I love this eyeliner so much? Let me count the ways.