If you are looking for a real pair of sunglasses, you need to be careful where there are many fake designer sunglasses. Some manufacturers make their business sunglasses like Locs made by Ray-Ban, but that's not true. To avoid spending your hard earned money on fake sunglasses, follow the steps below.

Check the "RB" on each lens of the sunglasses. Sunglasses manufacturer Ray-Ban "RB" etching into the lens. Touch these letters to make sure you can feel that they are etched.
Look at a style number inside the temple on the sunglasses. If there is no style number, then the glasses are fake designer sunglasses. In some cases, the fake loc contains a style number, but it is much larger than the style number on the Locs.
For polarized laser, check the lens to see if the letter "P" is written next to "Ray-Ban" on the left lens of each pair of fake sunglasses. If you have a pair of polarized lenses without this letter, you will have a knock on the door.
For Balorama sunglasses, the old-fashioned Loc bit has a newer look in the market and look inside the temple. Style number "4673" should appear here. If your sunglasses do not have that number printed in the temple, they are fake sunglasses.