Men Night Driving Polarized Prescription Clip On Sunglasses.
These Sunglass has three functions:
1. Put on the magnetic Blue cap, it is polarized sunglasses for daytime.
2. Put on the yellow grey cap, magnetic, it is polarized night driving
3. Without any magnetic clip on sunglasses, it is a just a normal optical
glasses frame, if you are near sight, you can replace the prescription
lens by yourself.