I can't begin to tell you how many times my mom told me she had eyes in the back of her head. I am pretty sure she was lying, but I never wanted to test her. Now, thanks to Nike and their new Hindsight concept glasses, I might never know if she was lying or not.

Nike Hindsight allows for an athlete or cyclist to actually see behind themselves. The glasses work like bifocals, but instead of magnifying, the glasses use lenses to extend a person's field of vision approximately 50 degrees (25 on each side) past the normal 180 degree field of vision. In other words, the glasses put eyes in the back of your head.

These glasses will certainly help keep people safe as they enjoy outdoor activities such as cycling or running. After all, it would be helpful to at least see the car coming up behind you when you can't hear the horn blaring because of your iPod.

Source.