I sweat a lot in the summer, and above all, I tend to cry a lot, so waterproof eye makeup is a must for me year-round. Also, I often find myself reaching for my eyes without even realizing it, but I really love this product because it doesn't smudge even with water, sweat, or oil, and stays put all day long. There is a wide variety of colors to choose from, so you can pick the shade you want, and I actually own two of them. I recommend this to anyone like me whose eye makeup smudges easily and is difficult to maintain!