I recommend Clio eyeliner.

I recommend eyeliners that I have used more than 10 of.

The product name is Clio Sharp So Simple Waterproof Pencil Liner, and it applies really smoothly, so even those who aren't good at drawing eyeliner can use it easily.

I highly recommend this product because it is perfect for eye makeup beginners to start with. I started using it a few years ago after getting a recommendation, and since then, I’ve used only this product and probably gone through more than ten tubes. It draws well and is resistant to sweat and water, so it doesn't smudge easily, making it great for summer use. The fact that it doesn't come off easily is both its strength and weakness. You need to wipe it off with a dedicated eyeliner remover first and then cleanse your face to remove it cleanly!

Still, the price is reasonable and the product quality is great, so I highly recommend it. It is a product that allows you to draw natural-looking lines.

It's so good that I stock up on a few whenever it's on sale!