Not too long ago, swim goggles weren’t even a thing. When swimmer Mark Spitz won 7 gold medals in the 1972 Olympic Games in Munich, he did it without any at all. We’re not recommending that.

Goggles do more than help you look like a serious competitor. They can keep pool chemicals, salt water, bacteria and everything else out of your eyes, they can shield your eyes from the sun, and they can help you see better underwater. And if you need prescription goggles, they can also help you see the posted workout at swim practice, or, if you’re super nearsighted, can even help you see the other end of the pool.

Finis Smart Goggles:

If you get bored counting or lose track, these smart goggles tell you right on the goggle lens exactly how far you’ve swum. If you’re competitive, your time in the same spot. The readout is surprisingly not annoying at all when you swim and the goggles themselves are very comfortable.

Read the full article at Men’s Health.