Lifeproof your liner! We heard you—and we brought back the cult classic Stay Put Infinite Liner, but this time it’s better than ever. Meet your forever eyeliner, with a bold black opaque formula and precise brush designed to effortlessly achieve killer sharp lines. This eyeliner is the definition of serious staying power, delivering 24HR wear that's also sweat-proof, waterproof, and totally life-proofed.Nothing with fur, fin or feathers was hurt to make this beauty essential. This product is 100% vegan. This product – and every other Milani product – is never tested on animals. We don’t allow others to test on our behalf, either. Our products are 100% cruelty free.