Colorstay Eyeliner is a smudge-proof and waterproof eyeliner designed to last for up to 16 hours.
I really like this and used it very often. Its a good dupe for the urban decay 24/7 in zero. this product is what i can say is pretty inexpensive and is very good quality. I use this almost everyday on my upper waterline to make my lashes look thicker and more full. Its also has this awesome built in sharpener that is very handy when you need a finer point on your eyeliner. It stays on well even when i dance/workout/sweat. I've gone through almost 20 of these. Thats how much I love these things. I really recommend this too everyone.