If you are an avid bicyclist, finally your prayers may have been answered. There are many irrational motorists on the road, from whom you have to keep yourself safe.
The Nike Hindsight gives you near super-human powers by providing you extended peripheral vision.
By using fresnel lenses on the two sides of the glasses, cyclists can view area beyond the normal 180º! Although the vision is distorted across the periphery, the eye detects only motion in that area and therefore only nominal clarity is lost overall. Because of the powerful fresnel lenses the cyclist can view an extra 25º on both sides.
You do not have to turn your head everytime you think a vehicle is behind, the Nike Hindsight will pretty much take care of it. Although originally intended for bicyclists, these glasses can be used for quite a number of other sports.